Malware: Squirrelwaffle

Description

[Squirrelwaffle](https://attack.mitre.org/software/S1030) 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](https://attack.mitre.org/software/S0154) and the [QakBot](https://attack.mitre.org/software/S0650) banking trojan.(Citation: ZScaler Squirrelwaffle Sep 2021)(Citation: Netskope Squirrelwaffle Oct 2021)

External References

• mitre-attack
• ZScaler Squirrelwaffle Sep 2021
• Netskope Squirrelwaffle Oct 2021

Techniques Used by This Malware

• T1016 — System Network Configuration Discovery
• T1027.002 — Software Packing
• T1027.013 — Encrypted/Encoded File
• T1033 — System Owner/User Discovery
• T1041 — Exfiltration Over C2 Channel
• T1059.001 — PowerShell
• T1059.003 — Windows Command Shell
• T1059.005 — Visual Basic
• T1071.001 — Web Protocols
• T1082 — System Information Discovery
• T1105 — Ingress Tool Transfer
• T1132.001 — Standard Encoding
• T1140 — Deobfuscate/Decode Files or Information
• T1204.001 — Malicious Link
• T1204.002 — Malicious File
• T1218.010 — Regsvr32
• T1218.011 — Rundll32
• T1497 — Virtualization/Sandbox Evasion
• T1560.003 — Archive via Custom Method
• T1566.001 — Spearphishing Attachment
• T1566.002 — Spearphishing Link