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FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44)

FoggyWeb is a passive and highly-targeted backdoor capable of remotely exfiltrating sensitive information from a compromised Active Directory Federated Services (AD FS) server. It has been used by APT29 since at least early April 2021.(Citation: MSTIC FoggyWeb September 2021)

Cluster A Galaxy A Cluster B Galaxy B Level
Archive via Library - T1560.002 (41868330-6ee2-4d0f-b743-9f2294c3c9b6) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Use Alternate Authentication Material - T1550 (51a14c76-dd3b-440b-9c20-2bf91d25a814) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Shared Modules - T1129 (0a5231ec-41af-4a35-83d0-6bdf11f28c65) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware Network Sniffing - T1040 (3257eb21-f9a7-4430-8de1-d8b6e288f529) Attack Pattern 1
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Private Keys - T1552.004 (60b508a1-6a5e-46b1-821a-9f7b78752abf) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Match Legitimate Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware Reflective Code Loading - T1620 (4933e63b-9b77-476e-ab29-761bc5b7d15a) Attack Pattern 1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Process Discovery - T1057 (8f4a33ec-8b1f-4b80-a2f6-642b2e479580) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Archive via Custom Method - T1560.003 (143c0cbb-a297-4142-9624-87ffc778980b) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware DLL Search Order Hijacking - T1574.001 (2fee9321-3e71-4cf4-af24-d4d40d355b34) Attack Pattern 1
Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
File and Directory Discovery - T1083 (7bc57495-ea59-4380-be31-a64af124ef18) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Compile After Delivery - T1027.004 (c726e0a2-a57a-4b7b-a973-d0f013246617) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 1
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) Attack Pattern FoggyWeb - S0661 (72911fe3-f085-40f7-b4f2-f25a4221fe44) Malware 1
Archive via Library - T1560.002 (41868330-6ee2-4d0f-b743-9f2294c3c9b6) Attack Pattern Archive Collected Data - T1560 (53ac20cd-aca3-406e-9aa0-9fc7fdc60a5a) Attack Pattern 2
Unsecured Credentials - T1552 (435dfb86-2697-4867-85b5-2fef496c0517) Attack Pattern Private Keys - T1552.004 (60b508a1-6a5e-46b1-821a-9f7b78752abf) Attack Pattern 2
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) Attack Pattern Match Legitimate Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2) Attack Pattern 2
Archive via Custom Method - T1560.003 (143c0cbb-a297-4142-9624-87ffc778980b) Attack Pattern Archive Collected Data - T1560 (53ac20cd-aca3-406e-9aa0-9fc7fdc60a5a) Attack Pattern 2
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
Hijack Execution Flow - T1574 (aedfca76-3b30-4866-b2aa-0f1d7fd1e4b6) Attack Pattern DLL Search Order Hijacking - T1574.001 (2fee9321-3e71-4cf4-af24-d4d40d355b34) 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
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Compile After Delivery - T1027.004 (c726e0a2-a57a-4b7b-a973-d0f013246617) 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