Wednesday, 7 January 2015

Invoice Senior Accounts Payable Specialist excel malware

Another variant of the Senior Accounts Payable Specialist document, is being spammed out containing a macro embedded in a excel document

The Excel document has a random attachment and use a random company name...they just being used to make the email look more genuine, ie. from a real company.

Message Header:
Date: Wed, 07 Jan 2015 13:56:40 +0200
Subject: Invoice 2648.16 GBP
From: Josefa Sanders

Example Message Body:
Please find attached invoice for 2648.16 GBP.
Any queries please contact us.
Josefa Sanders
Senior Accounts Payable Specialist
OXFORD ADVANCED SURFACES GR PLC
Random Attachment name:
RBAC_1364KZ.xls

List of spammed names and companies (pastebin)

Md5 Hashes:
3a63ebdf4a0b34e38c7c1d54a6bb952e
650b3906f6f93a46fb68cfbbe46ef1ce
cad6c0834c7519bcafcf6ba20eadb89a

Malware Macro document information:

VirusTotal Report [1]
(hits 2/56 Virus Scanners)

VirusTotal Report [2]
(hits 2/56 Virus Scanners)

VirusTotal Report [3]
(hits 2/56 Virus Scanners)

Malwr Report [1]

Decoded Macro [1]
Sanesecurity signatures are blocking this as: Sanesecurity.Malware.24675.XlsHeur

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

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