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HAPPYWORK (656cd201-d57a-4a2f-a201-531eb4922a72)
HAPPYWORK is a malicious downloader that can download and execute a second-stage payload, collect system information, and beacon it to the command and control domains. The collected system information includes: computer name, user name, system manufacturer via registry, IsDebuggerPresent state, and execution path. In November 2016, HAPPYWORK targeted government and financial targets in South Korea.
Cluster A![]() |
Galaxy A![]() |
Cluster B![]() |
Galaxy B![]() |
Level![]() |
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HAPPYWORK (656cd201-d57a-4a2f-a201-531eb4922a72) | Tool | HAPPYWORK - S0214 (211cfe9f-2676-4e1c-a5f5-2c8091da2a68) | Malware | 1 |
System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) | Attack Pattern | HAPPYWORK - S0214 (211cfe9f-2676-4e1c-a5f5-2c8091da2a68) | Malware | 2 |
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) | Attack Pattern | HAPPYWORK - S0214 (211cfe9f-2676-4e1c-a5f5-2c8091da2a68) | Malware | 2 |
Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add) | Attack Pattern | HAPPYWORK - S0214 (211cfe9f-2676-4e1c-a5f5-2c8091da2a68) | Malware | 2 |