Date: 21 April 2016 at 12:03
Subject: Dispatched Purchase Order
Purchase Order, 11300 / 0006432242, has been Dispatched. Please detach and print the attached Purchase Order.
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Attached is a file with a name matching the reference in the email, e.g. 0006432242.tgz which is a compressed archive file, containing in turn another archive file with a name like 5611205-19.04.2016.tar and it that archive is a malicious script named in an almost identical format the the TAR file (e.g. 5611205-19.04.2016.js). This script has a typical detection rate of 8/56.
So far I have seen two versions of this script, downloading from:
The downloaded binary is the same in both cases. This Hybrid Analysis and DeepViz Analysis indicate network traffic to:
126.96.36.199 (MultiNet AS, Norway)
188.8.131.52 (Topix, Italy)
184.108.40.206 (Impsat, Argentina)
220.127.116.11 (Novanet da Barra Ass e Inf LTDA, Brazil)
The payload appears to be the Dridex banking trojan.