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Threat Actor Profile

Stolen Pencil

ARCHIPELAGO Crooked Pisces G0086 Greendinosa ITG16 Kimsuky KTA082 Opal Sleet RGB-D5 SharpTongue TA406 TA408 UAT-5394
▲ High Threat
KLogEXE and FPSpy Deployment, LLM-Enhanced Reconnaissance
Origin North Korea
Sponsor Government of North Korea (DPRK)
Motivation Cyber espionage and intelligence gathering regarding foreign policy, nuclear sanctions, and national security

Target Sectors

Government Agencies Think Tanks Academic Institutions Defense Sector Energy Sector Healthcare Diplomatic Organizations

Known TTPs

Spear-phishing with geopolitical lures
Distribution of malicious Google Chrome extensions
Living off the Land (LotL) using built-in Windows administration tools
Remote Desktop Protocol (RDP) for persistence and manual interaction
Use of Large Language Models (LLMs) for reconnaissance and lure generation
PowerShell-based keyloggers
Credential harvesting from browser memory and process memory

External Resources

CISA Advisories ↗

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