Tuesday, 20 January 2015

Undefined transactions (need assistance) Ref word malware

Undefined transactions  (need assistance) Ref: malware....

The Word document has a random attachment, however these emails aren't from these various companies at all, they just being used to make the email look more genuine, ie. from a real company.

It's also worth remembering that the company itself  may not have any knowledge of this email and it's link(s) or attachment as it won't have come from their servers and IT systems but from an external bot net.

It's not advised to ring them as there won't really be anything they can do to help you.

Message Header: (Note: From name and Ref number is random)

From: Keven Dillard {Jennifer.0c@fibertel.com.ar}
Subject: Undefined transactions  (need assistance) Ref:1404992VQ
Message Body: (Note: Name and Company name is random)
Good morning
I have recently found several payments on statement with the incorrect reference. Amounts appear to be from your company, could you please confirm these payments are yours and were made from your company's bank account. If no then please reply me as soon as possible. Thanks.
P.S. Undefined transactions are included in the attached DOC.
Regards,
Keven Dillard
Remittance Manager
ADVANCED COMPUTER SOFTWARE GRP PLC
 Attachment: (Note attachment name is random)

291719GC.doc
Md5 Hashes:
0b91631d399a33bbe0417f1a4ed4c66b
f49c26430aff93f6cf0d45801c8ea150

Malware Macro document information:

VirusTotal Report [1] (hits 0/57 Virus Scanners)

VirusTotal Report [2] (hits 0/57 Virus Scanners)

Malwr Report [1]

Malwr Report [2]

Decoded Macro [1]
Sanesecurity signatures are blocking this as:

Sanesecurity.Malware.24676.DocHeur
NOTE

The current round of Word and Excel attachments are targeted at Windows users.

Apple and Android software can open these attachments and may even manage to run the macro embedded inside the attachment.

The auto-download file is normally a windows executable and so will not currently run on  any operating system, apart from Windows.

However, if you are an Apple/Android user and forward the message to a Windows user, you will them put them at risk of opening the attachment and auto-downloading the malware.

Currently these attachments try to auto-download Dridex, which is designed to

steal login information regarding your bank accounts (either by key logging, taking auto-screens hots or copying information from your clipboard (copy/paste))

Cheers,
Steve

1 comment:

Chris said...

Interesting new 'encryption' function in the macro, didn't make me sigh out loud at all this morning!