APT GROUP123
2025-05-14 • Cyfirma •
CYFIRMA profiles Group123 as a North Korean state-sponsored espionage group active since at least 2012 and tracked as APT37, Reaper, ScarCruft, and related aliases. The report describes targeting in South Korea, Japan, Vietnam, the Middle East, and other regions, with defense, aerospace, nuclear technology, engineering, and government-related entities among the collection priorities. Reported tradecraft includes spear phishing with HWP and Office lures, exploitation of public-facing applications, watering holes, drive-by compromise, DLL sideloading, staged payloads, and C2 through legitimate or compromised services. The profile lists tools and malware associated with the cluster, including RokRat, Konni, BLUELIGHT, Chinotto, NavRAT, M2RAT, and other APT37-linked families.