Malware Attackers Using MacroPack to Deliver Havoc, Brute Ratel, and PhantomCore
Sep 05, 2024
Cyber Threat / Malware
Threat actors are likely employing a tool designated for red teaming exercises to serve malware, according to new findings from Cisco Talos. The program in question is a payload generation framework called MacroPack , which is used to generate Office documents, Visual Basic scripts, Windows shortcuts, and other formats for penetration testing and social engineering assessments. It was developed by French developer Emeric Nasi. The cybersecurity company said it found artifacts uploaded to VirusTotal from China, Pakistan, Russia, and the U.S. that were all generated by MacroPack and used to deliver various payloads such as Havoc, Brute Ratel , and a new variant of PhantomCore , a remote access trojan (RAT) attributed to a hacktivist group named Head Mare. "A common feature in all the malicious documents we dissected that caught our attention is the existence of four non-malicious VBA subroutines," Talos researcher Vanja Svajcer said . "These subroutines appeared...