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GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25)

GrimAgent is a backdoor that has been used before the deployment of Ryuk ransomware since at least 2020; it is likely used by FIN6 and Wizard Spider.(Citation: Group IB GrimAgent July 2021)

Cluster A Galaxy A Cluster B Galaxy B Level
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Binary Padding - T1027.001 (5bfccc3f-2326-4112-86cc-c1ece9d8a2b5) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add) Attack Pattern 1
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern 1
Asymmetric Cryptography - T1573.002 (bf176076-b789-408e-8cba-7275e81c0ada) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern 1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern 1
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Junk Data - T1001.001 (f7c0689c-4dbd-489b-81be-7cb7c7079ade) Attack Pattern 1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Scheduled Task - T1053.005 (005a06c6-14bf-4118-afa0-ebcd8aebb0c9) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware System Location Discovery - T1614 (c877e33f-1df6-40d6-b1e7-ce70f16f4979) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 1
System Language Discovery - T1614.001 (c1b68a96-3c48-49ea-a6c0-9b27359f9c19) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern 1
Clear Persistence - T1070.009 (d2c4e5ea-dbdf-4113-805a-b1e2a337fb33) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware File and Directory Discovery - T1083 (7bc57495-ea59-4380-be31-a64af124ef18) Attack Pattern 1
Time Based Evasion - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0) Attack Pattern GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware 1
GrimAgent - S0632 (c9b99d03-ff11-4a48-95f0-82660d582c25) Malware Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 1
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Binary Padding - T1027.001 (5bfccc3f-2326-4112-86cc-c1ece9d8a2b5) 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
Asymmetric Cryptography - T1573.002 (bf176076-b789-408e-8cba-7275e81c0ada) Attack Pattern Encrypted Channel - T1573 (b8902400-e6c5-4ba2-95aa-2d35b442b118) 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
Junk Data - T1001.001 (f7c0689c-4dbd-489b-81be-7cb7c7079ade) Attack Pattern Data Obfuscation - T1001 (ad255bfe-a9e6-4b52-a258-8d3462abe842) Attack Pattern 2
Scheduled Task/Job - T1053 (35dd844a-b219-4e2b-a6bb-efa9a75995a9) Attack Pattern Scheduled Task - T1053.005 (005a06c6-14bf-4118-afa0-ebcd8aebb0c9) Attack Pattern 2
System Language Discovery - T1614.001 (c1b68a96-3c48-49ea-a6c0-9b27359f9c19) Attack Pattern System Location Discovery - T1614 (c877e33f-1df6-40d6-b1e7-ce70f16f4979) Attack Pattern 2
File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern Indicator Removal - T1070 (799ace7f-e227-4411-baa0-8868704f2a69) Attack Pattern 2
Encrypted Channel - T1573 (b8902400-e6c5-4ba2-95aa-2d35b442b118) Attack Pattern Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern 2
Clear Persistence - T1070.009 (d2c4e5ea-dbdf-4113-805a-b1e2a337fb33) Attack Pattern Indicator Removal - T1070 (799ace7f-e227-4411-baa0-8868704f2a69) Attack Pattern 2
Time Based Evasion - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0) Attack Pattern Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d) 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