For detection and mitigation strategies, this blog post from SOC Prime offers useful information. If you're investigating this threat, I can help by finding: of the payload YARA rules for detection Information on the WinRAR vulnerability involved
Based on your search, the file sc23902-IN.part2.rar is associated with a cyber-espionage campaign conducted by the threat actor against Ukrainian organizations in late 2023. sc23902-IN.part2.rar
The goal is espionage, aiming to drop malware, including the HeadSign backdoor, to steal information from compromised systems. For detection and mitigation strategies, this blog post
The campaign has targeted Ukrainian entities, often disguised as official, urgent communication. The campaign has targeted Ukrainian entities
A highly relevant and detailed article on this topic is: by The Hacker News. Key Highlights of the Campaign:
The attack involves phishing emails containing malicious RAR archives (specifically using the CVE-2023-38831 WinRAR vulnerability).