Moonstone Sleet

Also known as: Moonstone Sleet, Storm-1789, LABYRINTH CHOLLIMA

Moonstone Sleet is a North Korean-linked threat actor executing both financially motivated attacks and espionage operations. The group previously overlapped significantly with another North Korean-linked entity, Lazarus Group, but has differentiated its tradecraft since 2023. Moonstone Sleet is notable for creating fake companies and personas to interact with victim entities, as well as developing unique malware such as a variant delivered via a fully functioning game. Microsoft Moonstone Sleet 2024

🌍 Country North Korea
🧭 ATT&CK G1036

Introduction

Moonstone Sleet is a North Korean-linked threat actor executing both financially motivated attacks and espionage operations. The group previously overlapped significantly with another North Korean-linked entity, Lazarus Group, but has differentiated its tradecraft since 2023. Moonstone Sleet is notable for creating fake companies and personas to interact with victim entities, as well as developing unique malware such as a variant delivered via a fully functioning game. Microsoft Moonstone Sleet 2024

Activities and Tactics

Country of Origin: 🇰🇵 North Korea

Notable Campaigns

Information pending cataloguing.

Tactics, Techniques, and Procedures (TTPs)

Information pending cataloguing.

Notable Indicators of Compromise (IOCs)

No curated IOCs are currently published for this actor. This section will be updated when stable, attributable indicators are available.

Malware and Tools

  • CyberGate:
  • Cyber Eye RAT:

Attribution and Evidence

Country of Origin: North Korea Additional attribution information pending cataloguing.

References

[1] MITRE ATT&CK MITRE ATT&CK entry [2] Microsoft Moonstone Sleet 2024