Multiple badness on metoristrontgui.info / 119.28.100.249

Two massive fake "Bill" spam runs seem to be under way, one claiming to be from BT and the other being more generic.

Subject:       New BT Bill
From:       "BT Business" [btbusiness@bttconnect.com]
Date:       Thu, August 24, 2017 6:08 pm
Priority:       Normal

From BT
New BT Bill

Your bill amount is: $106.84
This doesn't include any amounts brought forward from any other bills.

We've put your latest BT bill for you to view. See your bill here


We'll take your payment from your account as usual by Direct Debit.

Reduce paper waste
You're still getting paper bills by post. Why not go paper-free, and stop storing and shredding them once and for all?


Need some help?
Go to www.bt.com/business/support.

Thanks for choosing BT.

Robena Morath
CEO, BT Business

Payment processing fee: BT Payment Services Ltd, a BT Group Company, charges this fee.
This or confidential. It's meant only for the individual(s) email contains BT information, which may be privileged or entity named above. If you're not the intended recipient, note that disclosing, copying, distributing or using this information is prohibited. If you've received this email in error, please let me know immediately on the email address above. Thank you. We monitor our email system, and may record your emails.

And a simpler one..

From:    Dianna Mcgrew
Date:    24 August 2017 at 14:50
Subject:    Bill-9835

Hi,

Here is a copy of your bill.

Thank you & have a great weekend!

Most (but not all) of the samples I  have seen then lead to a single website to download the malicious payload, for example:

http://metoristrontgui.info/af/download.php
http://metoristrontgui.info/af/bill-201708.rar
http://metoristrontgui.info/af/bill-201708.7z

metoristrontgui.info is hosted on 119.28.100.249 (Tencent, China) which is an IP we've seen a few times recently [1] [2]. Let's check out that WHOIS:

Domain Name: METORISTRONTGUI.INFO
Registry Domain ID: D503300000042955753-LRMS
Registrar WHOIS Server:
Registrar URL: http://www.eranet.com
Updated Date: 2017-08-24T14:02:07Z
Creation Date: 2017-08-24T13:24:23Z
Registry Expiry Date: 2018-08-24T13:24:23Z
Registrar Registration Expiration Date:
Registrar: Eranet International Limited
Registrar IANA ID: 1868
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: addPeriod https://icann.org/epp#addPeriod
Registry Registrant ID: C208152073-LRMS
Registrant Name: Robert Ruthven
Registrant Organization: Gamblin Artists Colors
Registrant Street: 323 SE Division Pl
Registrant City: Portland
Registrant State/Province: OR
Registrant Postal Code: 97202
Registrant Country: US
Registrant Phone: +1.5034359411
Registrant Phone Ext:
Registrant Fax: +1.5034359411
Registrant Fax Ext:
Registrant Email: jenniemarc@mail.com
Registry Admin ID: C208152073-LRMS
Admin Name: Robert Ruthven
Admin Organization: Gamblin Artists Colors
Admin Street: 323 SE Division Pl
Admin City: Portland
Admin State/Province: OR
Admin Postal Code: 97202
Admin Country: US
Admin Phone: +1.5034359411
Admin Phone Ext:
Admin Fax: +1.5034359411
Admin Fax Ext:
Admin Email: jenniemarc@mail.com
Registry Tech ID: C208152073-LRMS
Tech Name: Robert Ruthven
Tech Organization: Gamblin Artists Colors
Tech Street: 323 SE Division Pl
Tech City: Portland
Tech State/Province: OR
Tech Postal Code: 97202
Tech Country: US
Tech Phone: +1.5034359411
Tech Phone Ext:
Tech Fax: +1.5034359411
Tech Fax Ext:
Tech Email: jenniemarc@mail.com
Registry Billing ID: C208152073-LRMS
Billing Name: Robert Ruthven
Billing Organization: Gamblin Artists Colors
Billing Street: 323 SE Division Pl
Billing City: Portland
Billing State/Province: OR
Billing Postal Code: 97202
Billing Country: US
Billing Phone: +1.5034359411
Billing Phone Ext:
Billing Fax: +1.5034359411
Billing Fax Ext:
Billing Email: jenniemarc@mail.com
Name Server: A.DNSPOD.COM
Name Server: B.DNSPOD.COM
Name Server: C.DNSPOD.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/

VirusTotal confirms a lot of badness here, with all of these evil domains on the same server:

drommazxitnnd7gsl.com
74jhdrommdtyis.net
rtozottosdossder.net
kabbionionsesions.net
ttytreffdrorseder.net
tyytrddofjrntions.net
mjhsdgc872bf432rdf.net
yrns7sg3kdn94hskxhbf.net
trmbobodortyuoiyrt.org
metoristrontgui.info
fsroosionsoulsda.info
aldirommestorr887.info
droohsdronfhystgfh.info

Downloads from this site can be a bit slow, unsurprisingly. The dropped EXE seems to be Locky ransomware with a detection rate of 19/65. Hybrid Analysis shows the sample POSTing to 185.179.190.31/imageload.cgi (Webhost LLC, Russia)

Recommended minimum blocklist:
185.179.190.31
119.28.100.249