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Tuesday, 20 January 2015

Malware spam: "Monika [monika.goetz@bigk.co.uk]" / "Proforma Invoice"

This fake invoice leads to malware. It is not being sent by Big K Products UK Ltd, their systems have not been hacked or compromised. Instead, the email is a forgery designed to get you to click the malicious attachment.

From:    Monika [monika.goetz@bigk.co.uk]
Date:    20 January 2015 at 07:18
Subject:    Proforma Invoice

Please find enclosed the proforma invoice for your order. Please let me know when payment has been made, so that the goods can be despatched.

Kind regards,

Monika Goetz
Sales & Marketing Co-ordinator

The document attached is Proforma.doc which is currently undetected by AV vendors. It contains a malicious macro [pastebin] which attempts to download a binary from:


..which is saved to %TEMP%\324234234.exe. This has a VirusTotal detection rate of 2/56 and the Malwr report shows it attempting to phone home to: (HKBN, Hong Kong) (1&1, US)

These IPs have been used many times in similar recent attacks an I recommend you block them.

It also drops a DLL with a VirusTotal detection rate of 2/57.  The payload appears to be the Dridex banking trojan.

See also this post about a related spam run also in progress this morning.

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