Monthly Threat Actor Group Intelligence Report, September 2024 (JPN)
2025-01-17 • NSHC •
NSHC's September 2024 intelligence review says 47 hacking-group activity cases were observed from August 21 to September 20, with SectorA accounting for the largest share and activity most often affecting finance and government targets. The North Korea-linked SectorA section lists six subgroups active across regions including North America, East Asia, Europe, and the Middle East, with operations tied to both espionage and financial objectives. Reported tradecraft includes recruiter impersonation with compressed archives and malicious scripts, DLL malware abusing the Windows photo viewer component shimgvw.dll, encrypted PDFs paired with a malicious reader, LNK malware disguised as a security-policy meeting plan, Dropbox API-based fileless execution, macOS Mach-O malware disguised as Discord, and spear-phishing emails impersonating a portal support center. The SectorA activity is framed as long-running collection against Korean political and diplomatic interests alongside global financially motivated hacking.