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Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49)

Clambling is a modular backdoor written in C++ that has been used by Threat Group-3390 since at least 2017.(Citation: Trend Micro DRBControl February 2020)

Cluster A Galaxy A Cluster B Galaxy B Level
Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
DLL Side-Loading - T1574.002 (e64c62cf-9cd7-4a14-94ec-cdaac43ab44b) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware Non-Application Layer Protocol - T1095 (c21d5a77-d422-4a69-acd7-2c53c1faa34b) Attack Pattern 1
Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware Keylogging - T1056.001 (09a60ea3-a8d1-4ae5-976e-5783248b72a4) Attack Pattern 1
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
PowerShell - T1059.001 (970a3432-3237-47ad-bcca-7d8cbb217736) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
System Time Discovery - T1124 (f3c544dc-673c-4ef3-accb-53229f1ae077) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Process Injection - T1055 (43e7dc91-05b2-474c-b9ac-2ed4fe101f4d) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Query Registry - T1012 (c32f7008-9fea-41f7-8366-5eb9b74bd896) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Process Discovery - T1057 (8f4a33ec-8b1f-4b80-a2f6-642b2e479580) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Process Hollowing - T1055.012 (b200542e-e877-4395-875b-cf1a44537ca4) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Network Share Discovery - T1135 (3489cfc5-640f-4bb3-a103-9137b97de79f) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Modify Registry - T1112 (57340c81-c025-4189-8fa0-fc7ede51bae4) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Screen Capture - T1113 (0259baeb-9f63-4c69-bf10-eb038c390688) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Hidden Files and Directories - T1564.001 (ec8fc7e2-b356-455c-8db5-2e37be158e7d) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware Service Execution - T1569.002 (f1951e8a-500e-4a26-8803-76d95c4554b4) Attack Pattern 1
Clipboard Data - T1115 (30973a08-aed9-4edf-8604-9084ce1b5c4f) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
File and Directory Discovery - T1083 (7bc57495-ea59-4380-be31-a64af124ef18) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Time Based Evasion - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware Bypass User Account Control - T1548.002 (120d5519-3098-4e1c-9191-2aa61232f073) Attack Pattern 1
Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern 1
Bidirectional Communication - T1102.002 (be055942-6e63-49d7-9fa1-9cb7d8a8f3f4) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Video Capture - T1125 (6faf650d-bf31-4eb4-802d-1000cf38efaf) Attack Pattern Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware 1
Clambling - S0660 (6e95feb1-78ee-48d3-b421-4d76663b5c49) Malware Exfiltration to Cloud Storage - T1567.002 (bf1b6176-597c-4600-bfcd-ac989670f96b) Attack Pattern 1
Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b) Attack Pattern Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597) Attack Pattern 2
DLL Side-Loading - T1574.002 (e64c62cf-9cd7-4a14-94ec-cdaac43ab44b) Attack Pattern Hijack Execution Flow - T1574 (aedfca76-3b30-4866-b2aa-0f1d7fd1e4b6) 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
User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5) Attack Pattern Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern 2
Input Capture - T1056 (bb5a00de-e086-4859-a231-fa793f6797e2) Attack Pattern Keylogging - T1056.001 (09a60ea3-a8d1-4ae5-976e-5783248b72a4) Attack Pattern 2
PowerShell - T1059.001 (970a3432-3237-47ad-bcca-7d8cbb217736) Attack Pattern Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830) 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
Process Hollowing - T1055.012 (b200542e-e877-4395-875b-cf1a44537ca4) Attack Pattern Process Injection - T1055 (43e7dc91-05b2-474c-b9ac-2ed4fe101f4d) Attack Pattern 2
Hidden Files and Directories - T1564.001 (ec8fc7e2-b356-455c-8db5-2e37be158e7d) Attack Pattern Hide Artifacts - T1564 (22905430-4901-4c2a-84f6-98243cb173f8) Attack Pattern 2
System Services - T1569 (d157f9d2-d09a-4efa-bb2a-64963f94e253) Attack Pattern Service Execution - T1569.002 (f1951e8a-500e-4a26-8803-76d95c4554b4) 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
Time Based Evasion - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0) Attack Pattern Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d) Attack Pattern 2
Abuse Elevation Control Mechanism - T1548 (67720091-eee3-4d2d-ae16-8264567f6f5b) Attack Pattern Bypass User Account Control - T1548.002 (120d5519-3098-4e1c-9191-2aa61232f073) 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
Web Service - T1102 (830c9528-df21-472c-8c14-a036bf17d665) Attack Pattern Bidirectional Communication - T1102.002 (be055942-6e63-49d7-9fa1-9cb7d8a8f3f4) Attack Pattern 2
Exfiltration Over Web Service - T1567 (40597f16-0963-4249-bf4c-ac93b7fb9807) Attack Pattern Exfiltration to Cloud Storage - T1567.002 (bf1b6176-597c-4600-bfcd-ac989670f96b) Attack Pattern 2