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Thursday 17 December 2015

Malware spam: "Required your attention" leads to Teslacrypt

This spam email has a malicious attachment:

From:    Brittany Quinn
Date:    17 December 2015 at 10:52
Subject:    Required your attention

Dear Partner,

As per your request, we have made special prices for you, which leave us only a very small margin.

Kindly find attached the prices with your personal discount, and if you need anything else, don’t hesitate to contact us.

Our best wishes, The sales team
The sender's name varies from email to email, as does the name of the attachment but it in a format similar to SCAN_PRICES_01106759.zip. Contained within is a malicious obfuscated Javascript with a detection rate of 6/54 which is a bit clear when deobfuscated, and it downloads from:


This has a detection rate of 3/53. Automated analysis is inconclusive [1] [2] but this is Teslacrypt and is likely to be similar in characteristics to this spam run.

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