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Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47)

Squirrelwaffle is a loader that was first seen in September 2021. It has been used in spam email campaigns to deliver additional malware such as Cobalt Strike and the QakBot banking trojan.(Citation: ZScaler Squirrelwaffle Sep 2021)(Citation: Netskope Squirrelwaffle Oct 2021)

Cluster A Galaxy A Cluster B Galaxy B Level
Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
PowerShell - T1059.001 (970a3432-3237-47ad-bcca-7d8cbb217736) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Software Packing - T1027.002 (deb98323-e13f-4b0c-8d94-175379069062) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Archive via Custom Method - T1560.003 (143c0cbb-a297-4142-9624-87ffc778980b) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
System Network Configuration Discovery - T1016 (707399d6-ab3e-4963-9315-d9d3818cd6a0) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Regsvr32 - T1218.010 (b97f1d35-4249-4486-a6b5-ee60ccf24fab) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Rundll32 - T1218.011 (045d0922-2310-4e60-b5e4-3302302cb3c5) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Spearphishing Link - T1566.002 (2b742742-28c3-4e1b-bab7-8350d6300fa7) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Malicious Link - T1204.001 (ef67e13e-5598-4adc-bdb2-998225874fa9) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Visual Basic - T1059.005 (dfd7cc1d-e1d8-4394-a198-97c4cab8aa67) Attack Pattern Squirrelwaffle - S1030 (3c18ad16-9eaf-4649-984e-68551bff0d47) Malware 1
Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b) Attack Pattern Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597) 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
User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5) Attack Pattern Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e) 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
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Software Packing - T1027.002 (deb98323-e13f-4b0c-8d94-175379069062) 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
System Binary Proxy Execution - T1218 (457c7820-d331-465a-915e-42f85500ccc4) Attack Pattern Regsvr32 - T1218.010 (b97f1d35-4249-4486-a6b5-ee60ccf24fab) Attack Pattern 2
System Binary Proxy Execution - T1218 (457c7820-d331-465a-915e-42f85500ccc4) Attack Pattern Rundll32 - T1218.011 (045d0922-2310-4e60-b5e4-3302302cb3c5) Attack Pattern 2
Spearphishing Link - T1566.002 (2b742742-28c3-4e1b-bab7-8350d6300fa7) Attack Pattern Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b) 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
User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5) Attack Pattern Malicious Link - T1204.001 (ef67e13e-5598-4adc-bdb2-998225874fa9) Attack Pattern 2
Visual Basic - T1059.005 (dfd7cc1d-e1d8-4394-a198-97c4cab8aa67) Attack Pattern Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830) Attack Pattern 2