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Thursday, 23 October 2014

"Voice Mail" (voicemail_sender@voicemail.com) spam

Before you open something like this.. think if you really get voice mail notifications through your email. No? Well, don't open it.
From:  "Voice Mail" [voicemail_sender@voicemail.com]
Date:  Thu, 23 Oct 2014 14:31:22 +0200
Subject:  voice message from 598-978-8974 for mailbox 833

You have received a voice mail message from 598-978-8974
Message length is 00:00:33. Message size is 264 KB.

Download your voicemail message from dropbox service below (Google Disk
Drive Inc.):

Clicking the link goes to a script that detects if the visitor is running Windows, if so it downloads a file doc_9231-92_pdf.zip from the target system which in turn contains a malicious executable doc_9231-92_pdf.exe which has a VirusTotal detection rate of 4/51.

The Malwr report for that binary shows it communicating with the following URLs:
http://inaturfag.com/files/2310uk1.oss is rather unsurprisingly allocated to OVH France. It also drops a couple of executables onto the system, nlsio.exe (VT 4/48, Malwr report) and qhcjp.exe (VT 0/51, Malwr report).

Recommended blocklist:

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