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General
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Target
2024-03-09_5d0bbf024cd5fb1645155c9ab2e096f1_virlock
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Size
254KB
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Sample
240309-a3rd9sbe9z
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MD5
5d0bbf024cd5fb1645155c9ab2e096f1
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SHA1
f1e19b834924e6b8b39683d2680b1ce3c53c7804
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SHA256
f8dabbf3f6a99e1cc0059d7cfb901af2451c0a790839b605c595f3239b99f5d3
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SHA512
413beb0634d11899ea51a04b0eb97b247db0a093b8149d40c47fb313f5a8e43e9368eb844b6b69d94c57e2d76ea4aa6f6105c3fa7e88f8c1d3b7f81271b71c2f
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SSDEEP
3072:N8GGQWTqVN14g7X3DpwhSimjx7qImuxogPfqTXXBpG4EiCV9oZyoukj0qhA:nGFq/14G3DehSi4XuXX/fEieoZjjLhA
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-09_5d0bbf024cd5fb1645155c9ab2e096f1_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-09_5d0bbf024cd5fb1645155c9ab2e096f1_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-03-09_5d0bbf024cd5fb1645155c9ab2e096f1_virlock
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Size
254KB
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MD5
5d0bbf024cd5fb1645155c9ab2e096f1
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SHA1
f1e19b834924e6b8b39683d2680b1ce3c53c7804
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SHA256
f8dabbf3f6a99e1cc0059d7cfb901af2451c0a790839b605c595f3239b99f5d3
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SHA512
413beb0634d11899ea51a04b0eb97b247db0a093b8149d40c47fb313f5a8e43e9368eb844b6b69d94c57e2d76ea4aa6f6105c3fa7e88f8c1d3b7f81271b71c2f
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SSDEEP
3072:N8GGQWTqVN14g7X3DpwhSimjx7qImuxogPfqTXXBpG4EiCV9oZyoukj0qhA:nGFq/14G3DehSi4XuXX/fEieoZjjLhA
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (83) 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 Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1