New 'LucidRook' Malware Uses Lua and Rust in Targeted Attacks on Taiwan
Security researchers at Cisco Talos have discovered a new, sophisticated malware family named 'LucidRook' used in targeted spear-phishing campaigns. Attributed to a threat cluster known as UAT-10362, the attacks primarily target non-governmental organizations (NGOs) and universities in Taiwan. LucidRook is a complex stager delivered as a DLL that embeds a Lua interpreter and Rust-compiled libraries. It uses a dropper component, 'LucidPawn,' which performs an anti-analysis check to ensure it only runs on systems configured for the Traditional Chinese language. The malware downloads and executes Lua bytecode payloads from a C2 server, and is accompanied by a reconnaissance tool called 'LucidKnight' used for initial system profiling.