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AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d)

AvosLocker is ransomware written in C++ that has been offered via the Ransomware-as-a-Service (RaaS) model. It was first observed in June 2021 and has been used against financial services, critical manufacturing, government facilities, and other critical infrastructure sectors in the United States. As of March 2022, AvosLocker had also been used against organizations in Belgium, Canada, China, Germany, Saudi Arabia, Spain, Syria, Taiwan, Turkey, the United Arab Emirates, and the United Kingdom.(Citation: Malwarebytes AvosLocker Jul 2021)(Citation: Trend Micro AvosLocker Apr 2022)(Citation: Joint CSA AvosLocker Mar 2022)

Cluster A Galaxy A Cluster B Galaxy B Level
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Safe Mode Boot - T1562.009 (28170e17-8384-415c-8486-2e6b294cb803) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware System Time Discovery - T1124 (f3c544dc-673c-4ef3-accb-53229f1ae077) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Hidden Window - T1564.003 (cbb66055-0325-4111-aca0-40547b6ad5b0) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware System Shutdown/Reboot - T1529 (ff73aa03-0090-4464-83ac-f89e233c02bc) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Data Encrypted for Impact - T1486 (b80d107d-fa0d-4b60-9684-b0433e8bdba0) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Process Discovery - T1057 (8f4a33ec-8b1f-4b80-a2f6-642b2e479580) Attack Pattern 1
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Network Share Discovery - T1135 (3489cfc5-640f-4bb3-a103-9137b97de79f) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware File and Directory Discovery - T1083 (7bc57495-ea59-4380-be31-a64af124ef18) Attack Pattern 1
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware 1
Service Stop - T1489 (20fb2507-d71c-455d-9b6d-6104461cf26b) Attack Pattern AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Dynamic API Resolution - T1027.007 (ea4c2f9c-9df1-477c-8c42-6da1118f2ac4) Attack Pattern 1
AvosLocker - S1053 (0945a1a5-a79a-47c8-9079-10c16cdfcb5d) Malware Masquerade File Type - T1036.008 (208884f1-7b83-4473-ac22-4e1cf6c41471) Attack Pattern 1
Safe Mode Boot - T1562.009 (28170e17-8384-415c-8486-2e6b294cb803) Attack Pattern Impair Defenses - T1562 (3d333250-30e4-4a82-9edc-756c68afc529) Attack Pattern 2
Hide Artifacts - T1564 (22905430-4901-4c2a-84f6-98243cb173f8) Attack Pattern Hidden Window - T1564.003 (cbb66055-0325-4111-aca0-40547b6ad5b0) 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
Dynamic API Resolution - T1027.007 (ea4c2f9c-9df1-477c-8c42-6da1118f2ac4) Attack Pattern Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern 2
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) Attack Pattern Masquerade File Type - T1036.008 (208884f1-7b83-4473-ac22-4e1cf6c41471) Attack Pattern 2