General
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Target
2024-04-07_3d894f3a2ff01049d00ec8cb12c42ae5_virlock
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Size
163KB
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Sample
240407-3fcltahh45
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MD5
3d894f3a2ff01049d00ec8cb12c42ae5
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SHA1
74c4777ad2b799a225cd805b19feb8cb3509f300
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SHA256
2cbfc88391763ef2cea1a1307642a6e24daf41170321cd2c05e7d97a7329fc82
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SHA512
00b4dfc0831c1517c3ee82b62e4607ba516e87dc965065c8cbc5d4045c8a78e5199ae3e8a99ad117b204f3f1e230021f859e963e0e8defca38a0263ca4b9dbdd
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SSDEEP
3072:7WlTZCkx9x0MNAhspumCQCqXC+G9tQO/k2FC5kljGamWkYdzdEI9hUCPBQixxRt9:7WpZCwO8uxx7NckljGaZkYdzh92CPRxX
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-07_3d894f3a2ff01049d00ec8cb12c42ae5_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-07_3d894f3a2ff01049d00ec8cb12c42ae5_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-07_3d894f3a2ff01049d00ec8cb12c42ae5_virlock
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Size
163KB
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MD5
3d894f3a2ff01049d00ec8cb12c42ae5
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SHA1
74c4777ad2b799a225cd805b19feb8cb3509f300
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SHA256
2cbfc88391763ef2cea1a1307642a6e24daf41170321cd2c05e7d97a7329fc82
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SHA512
00b4dfc0831c1517c3ee82b62e4607ba516e87dc965065c8cbc5d4045c8a78e5199ae3e8a99ad117b204f3f1e230021f859e963e0e8defca38a0263ca4b9dbdd
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SSDEEP
3072:7WlTZCkx9x0MNAhspumCQCqXC+G9tQO/k2FC5kljGamWkYdzdEI9hUCPBQixxRt9:7WpZCwO8uxx7NckljGaZkYdzh92CPRxX
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (80) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1