General
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Target
2024-05-27_4acc4a7f7a89b93e0e50b2d85c1b2363_virlock
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Size
212KB
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Sample
240527-g8v3zabh27
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MD5
4acc4a7f7a89b93e0e50b2d85c1b2363
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SHA1
05c4f051c8b92cc651cd1ff7588e9bf686c65a34
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SHA256
5f855cbacdc5213f8ce45669679fd1cd43ba2ecf58c994ee296ce8946ab76e32
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SHA512
189f43c38d4b8d07532bf410d951a497f23cb9fae2171267221218aca45c6c8dd70b048b493a961db107acfcc33fa342f6190217fd8b1f6a400b7a03638b4687
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SSDEEP
6144:Xh+hGh3PUsvh5PvjKmbdinSQOu1xlRkPoNXhnjw:BW8h5PO0ebOQRkPihnjw
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_4acc4a7f7a89b93e0e50b2d85c1b2363_virlock.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-27_4acc4a7f7a89b93e0e50b2d85c1b2363_virlock.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
2024-05-27_4acc4a7f7a89b93e0e50b2d85c1b2363_virlock
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Size
212KB
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MD5
4acc4a7f7a89b93e0e50b2d85c1b2363
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SHA1
05c4f051c8b92cc651cd1ff7588e9bf686c65a34
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SHA256
5f855cbacdc5213f8ce45669679fd1cd43ba2ecf58c994ee296ce8946ab76e32
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SHA512
189f43c38d4b8d07532bf410d951a497f23cb9fae2171267221218aca45c6c8dd70b048b493a961db107acfcc33fa342f6190217fd8b1f6a400b7a03638b4687
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SSDEEP
6144:Xh+hGh3PUsvh5PvjKmbdinSQOu1xlRkPoNXhnjw:BW8h5PO0ebOQRkPihnjw
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (59) 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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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 Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1