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STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532)

STARWHALE is Windows Script File (WSF) backdoor that has been used by MuddyWater, possibly since at least November 2021; there is also a STARWHALE variant written in Golang with similar capabilities. Security researchers have also noted the use of STARWHALE by UNC3313, which may be associated with MuddyWater.(Citation: Mandiant UNC3313 Feb 2022)(Citation: DHS CISA AA22-055A MuddyWater February 2022)

Cluster A Galaxy A Cluster B Galaxy B Level
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
Local Data Staging - T1074.001 (1c34f7aa-9341-4a48-bfab-af22e51aca6c) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern 1
Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d) Attack Pattern 1
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5) Attack Pattern STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) Attack Pattern 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern 1
STARWHALE - S1037 (e355fc84-6f3c-4888-8e0a-d7fa9c378532) Malware Visual Basic - T1059.005 (dfd7cc1d-e1d8-4394-a198-97c4cab8aa67) Attack Pattern 1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 2
Local Data Staging - T1074.001 (1c34f7aa-9341-4a48-bfab-af22e51aca6c) Attack Pattern Data Staged - T1074 (7dd95ff6-712e-4056-9626-312ea4ab4c5e) Attack Pattern 2
User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5) Attack Pattern Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern 2
Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern Create or Modify System Process - T1543 (106c0cf6-bf73-4601-9aa8-0945c2715ec5) Attack Pattern 2
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern Data Encoding - T1132 (cc7b8c4e-9be0-47ca-b0bb-83915ec3ee2f) Attack Pattern 2
Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830) Attack Pattern 2
Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6) Attack Pattern Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 2
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern Boot or Logon Autostart Execution - T1547 (1ecb2399-e8ba-4f6b-8ba7-5c27d49405cf) Attack Pattern 2
Visual Basic - T1059.005 (dfd7cc1d-e1d8-4394-a198-97c4cab8aa67) Attack Pattern Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830) Attack Pattern 2