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Thursday 23 April 2015

Malware spam: "Refund on order 204-2374256-3787503" / "Amazon.co.uk [payments-messages@amazon.co.uk]"

This fake Amazon spam comes with a malicious attachment:

From:    Amazon.co.uk [payments-messages@amazon.co.uk]
Reply-To:    "Amazon.co.uk" [payments-messages@amazon.co.uk]
Date:    23 April 2015 at 09:58
Subject:    Refund on order 204-2374256-3787503

Dear Customer,

Greetings from Amazon.co.uk.

We are writing to confirm that we are processing your refund in the amount of £4.89 for your
Order 204-2374256-3787503.

This amount has been credited to your payment method and will appear when your bank has processed it.

This refund is for the following item(s):

Item: Beautiful Bitch
Quantity: 1
ASIN: 1476754144
Reason for refund: Customer return

The following is the breakdown of your refund for this item:

Item Refund: £4.89

Your refund is being credited as follows:

GC: £4.89

These amounts will be returned to your payment methods within 5 business days.

The amount credited to your Gift Card balance should be automatically applied to your next eligible
order on our website.

Have an issue with your refund, or a question about our refund policy?
Visit our Help section for more information:


Please note: The credit note for this transaction is attached to this e-mail and to open, you will
need Adobe Reader. If you do not have an Adobe Reader, please visit the following link to download
it: http://get.adobe.com/reader/

This credit note is the detailed breakdown of the refund showing the item(s), delivery costs and
associated VAT for each item. This credit note is largely applicable to business customers who
should retain it for accounting purposes. It’s not possible to redeem or use the credit
note number from this credit note towards an order. Visit our Help pages for more information on

Thank you for shopping at Amazon.co.uk.


Amazon.co.uk Customer Service

Note: this e-mail was sent from a notification-only e-mail address that cannot accept incoming e-mail.
Please do not reply to this message.

An advanced electronic signature has been attached to this electronic credit note. To add the certificate
as a trusted certificate, please follow these instructions:
1. Click on the 'Signature Panel' in the upper right corner
2. Expand the drop-down in the newly opened Signatures menu, expand the 'Signature Details' drop-down and
   click 'Certificate Details'
3. In the Certificate Viewer box click on the 'Trust' tab, click 'Add To Trusted Certificates' and then
   click OK
4. In the Import Contact Settings box, ensure that 'Use this certificate as a trusted root' is selected,
   click OK, and then click OK again

Attached is a file 204-2374256-3787503-credit-note.doc which probably comes in several versions, however the one I analysed had a detection rate of 4/57 and contained this malicious macro [pastebin] which downloads a component from:


..which is saved as %TEMP%\pierre3.exe and which currently has a detection rate of 3/42 (42?). Automated analysis tools [1] [2] [3] [4] indicate that it calls out to the following IPs: (RuWeb CJSC, Russia) (OneGbits, Lithuania) (OVH, Czech Republic) (Corgi Tech, UK) (TheFirst-RU, Russia)

The Malwr report says that it drops a Dridex DLL which currently has a detection rate of 17/56.

Recommended blocklist:



Scotia52 said...

I've come across this and it's clever than most, except that the it's not the sort of email Amazon sends in connection with refunds.

Interesting that the internet header identifies the sender as amazon.co.uk. I wonder how that's done?

Unknown said...

This has just happened to me. Hours after I got an email confirming my order had been dispatched, I received this exact email, but mine didn't come with an attachment.