We recently came across an attack campaign which looked quite unusual compared to the standard attacks normally seen in the wild. This campaign is targeting government agencies by sending phishing emails with a malicious attachment. Nothing new so far, except for one thing: the malicious payload is a Java remote access tool (RAT).
As we all know, cybercriminals tend to use recent hot media topics to entice users. In the case of this campaign they are using the recent news coverage surrounding the NSA surveillance program PRISM.
Figure 1. Phishing email example
The phishing email contains two legitimate non-malicious PDF documents and one Java file that mimics the name of a legitimate document. If a user is tricked into clicking this fake document, the Java applet...