Fraudsters who hack corporate bank accounts typically launder stolen funds by making deposits from the hacked company into accounts owned by “money mules,” willing or unwitting dupes recruited through work-at-home job scams. The mules usually are then asked to withdraw the funds in cash and wire the money to the scammers. Increasingly, however, the mules are being instructed to remit the stolen money via Bitcoin ATMs.
In March 2013 I wrote about Perkele, a crimeware kit designed to create malware for Android phones that can help defeat multi-factor authentication used by many banks. In this post, we’ll take a closer look at this threat, examining the malware as it is presented to the would-be victim as well as several back-end networks set up by cybercrooks who have been using Perkele to fleece banks and their customers.