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General
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Target
2024-03-25_3fc74b3e3e6868a79a75f8aae90378f8_virlock
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Size
256KB
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Sample
240325-2ggfqaad37
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MD5
3fc74b3e3e6868a79a75f8aae90378f8
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SHA1
c6cfe8d884a3b5ad07b7672a6950b96fcef6b26b
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SHA256
6bd3ee6e2286659ef751fd574173dca82f1916acb14b8e2fbb2a9137cf8c533d
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SHA512
d0887a55898a6cbc2b4a4335855d2891dbda9c743f0e9f58717787e6c3b9328c2995c8a61c42789079745e8a20fd90f4316ab4c24858b461c083dfe3a7fc9dba
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SSDEEP
3072:vUj3zuuLExmxNBh+5D/ZcVFgtw5L9UrVtD7kJ9F3F+/ONcCq96vqnQ:vU5DN/+qFgi5p0o3KOtq6J
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-25_3fc74b3e3e6868a79a75f8aae90378f8_virlock.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-03-25_3fc74b3e3e6868a79a75f8aae90378f8_virlock.exe
Resource
win10v2004-20240319-en
Malware Config
Targets
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Target
2024-03-25_3fc74b3e3e6868a79a75f8aae90378f8_virlock
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Size
256KB
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MD5
3fc74b3e3e6868a79a75f8aae90378f8
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SHA1
c6cfe8d884a3b5ad07b7672a6950b96fcef6b26b
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SHA256
6bd3ee6e2286659ef751fd574173dca82f1916acb14b8e2fbb2a9137cf8c533d
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SHA512
d0887a55898a6cbc2b4a4335855d2891dbda9c743f0e9f58717787e6c3b9328c2995c8a61c42789079745e8a20fd90f4316ab4c24858b461c083dfe3a7fc9dba
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SSDEEP
3072:vUj3zuuLExmxNBh+5D/ZcVFgtw5L9UrVtD7kJ9F3F+/ONcCq96vqnQ:vU5DN/+qFgi5p0o3KOtq6J
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