General
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Target
https://www.mediafire.com/file/vbp3ev0s8k1kn3s/Krampus.zip/file
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Sample
240607-2afwlsed75
Score
10/10
Malware Config
Extracted
Family
xworm
Attributes
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Install_directory
%ProgramData%
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install_file
USB.exe
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pastebin_url
https://pastebin.com/raw/a1kmrNub
Targets
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Target
https://www.mediafire.com/file/vbp3ev0s8k1kn3s/Krampus.zip/file
Score10/10-
Detect Xworm Payload
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Xworm
Xworm is a remote access trojan written in C#.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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UPX packed file
Detects executables packed with UPX/modified UPX open source packer.
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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