GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)

GoldMax is a second-stage C2 backdoor written in Go with Windows and Linux variants that are nearly identical in functionality. GoldMax was discovered in early 2021 during the investigation into the SolarWinds Compromise, and has likely been used by APT29 since at least mid-2019. GoldMax uses multiple defense evasion techniques, including avoiding virtualization execution and masking malicious traffic.(Citation: MSTIC NOBELIUM Mar 2021)(Citation: FireEye SUNSHUTTLE Mar 2021)(Citation: CrowdStrike StellarParticle January 2022)

Cluster A	Galaxy A	Cluster B	Galaxy B	Level
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Match Legitimate Resource Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Cron - T1053.003 (2acf44aa-542f-4366-b4eb-55ef5747759c)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	System Checks - T1497.001 (29be378d-262d-4e99-b00d-852d573628e6)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Scheduled Task - T1053.005 (005a06c6-14bf-4118-afa0-ebcd8aebb0c9)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Asymmetric Cryptography - T1573.002 (bf176076-b789-408e-8cba-7275e81c0ada)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Software Packing - T1027.002 (deb98323-e13f-4b0c-8d94-175379069062)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Junk Data - T1001.001 (f7c0689c-4dbd-489b-81be-7cb7c7079ade)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Time Based Checks - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	System Time Discovery - T1124 (f3c544dc-673c-4ef3-accb-53229f1ae077)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Ignore Process Interrupts - T1564.011 (4a2975db-414e-4c0c-bd92-775987514b4b)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c)	Attack Pattern	1
GoldMax - S0588 (5c747acd-47f0-4c5a-b9e5-213541fc01e0)	Malware	Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161)	Attack Pattern	1
Match Legitimate Resource Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2)	Attack Pattern	Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0)	Attack Pattern	2
Scheduled Task/Job - T1053 (35dd844a-b219-4e2b-a6bb-efa9a75995a9)	Attack Pattern	Cron - T1053.003 (2acf44aa-542f-4366-b4eb-55ef5747759c)	Attack Pattern	2
Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d)	Attack Pattern	System Checks - T1497.001 (29be378d-262d-4e99-b00d-852d573628e6)	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
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a)	Attack Pattern	Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144)	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
Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830)	Attack Pattern	Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62)	Attack Pattern	2
Software Packing - T1027.002 (deb98323-e13f-4b0c-8d94-175379069062)	Attack Pattern	Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a)	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
Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d)	Attack Pattern	Time Based Checks - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0)	Attack Pattern	2
Hide Artifacts - T1564 (22905430-4901-4c2a-84f6-98243cb173f8)	Attack Pattern	Ignore Process Interrupts - T1564.011 (4a2975db-414e-4c0c-bd92-775987514b4b)	Attack Pattern	2
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0)	Attack Pattern	Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c)	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