We have identified an ongoing spear-phishing campaign targeting a variety of entities with malicious RTF documents exploiting three different vulnerabilities: CVE-2017-8570, CVE-2017-11882 and CVE-2018-0802 and taking advantage of a misplaced trust binary, Microsoft’s msxsl, to run a JScript backdoor. The whole attack chain leverages on system’s signed components to remain under the radar as much as possible and it shares many …

MuddyWater is a threat actor that caught our attention for their extensive use of “Living off the Land” attacks in a targeted campaign aimed at the Middle East. During our investigation we reconstruct the evolution of the vectors used and how the group operates to  target their victims, evade detections and move laterally inside the compromised …