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General
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Target
Runtime Broker.exe
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Size
73KB
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Sample
250309-lyl5jazmw7
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MD5
7a5408d9535b2e5db8d194f4d8b93c23
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SHA1
c8c6caf9f750b4bc756b40c41f00c3ed3af7fbeb
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SHA256
23ecee99ee4ab7a150f91d4202033a6629cf5af74d80b6a12c2396f1f775734f
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SHA512
95ef1bdb1e56b3d9c6809586ea0d8ff197375584f8625748811dceb4783fb693749b49c3ed0890c23782946acec3ba5baadcf49735a87985e30f14081a365fd8
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SSDEEP
1536:Jb2yCofWhUvuJJH9o2qMnfAQPJwz7opMfQxnbSUyJhb/KpKU+k6eeOJ5w0pIBAM:nWhUvuJB9o2qMnfAQPJKy1jyJhb/KHhO
Behavioral task
behavioral1
Sample
Runtime Broker.exe
Resource
win10ltsc2021-20250217-en
Malware Config
Extracted
xworm
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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/DSFaHH8B
Targets
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Target
Runtime Broker.exe
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Size
73KB
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MD5
7a5408d9535b2e5db8d194f4d8b93c23
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SHA1
c8c6caf9f750b4bc756b40c41f00c3ed3af7fbeb
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SHA256
23ecee99ee4ab7a150f91d4202033a6629cf5af74d80b6a12c2396f1f775734f
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SHA512
95ef1bdb1e56b3d9c6809586ea0d8ff197375584f8625748811dceb4783fb693749b49c3ed0890c23782946acec3ba5baadcf49735a87985e30f14081a365fd8
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SSDEEP
1536:Jb2yCofWhUvuJJH9o2qMnfAQPJwz7opMfQxnbSUyJhb/KpKU+k6eeOJ5w0pIBAM:nWhUvuJB9o2qMnfAQPJKy1jyJhb/KHhO
Score10/10-
Detect Xworm Payload
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Xworm family
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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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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1