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General
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Target
2024-04-06_bc9ea6468dd2f86278dd48f5f8805556_virlock
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Size
142KB
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Sample
240406-rwn41acd8s
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MD5
bc9ea6468dd2f86278dd48f5f8805556
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SHA1
e5b9b711101c3240dcc66ad1011bc8d0c3ef2fcc
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SHA256
b24f9143d07595136d766c1214d3f62ec76989a1ca1c6b9047e0170d32db95f1
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SHA512
764cc6a8f5bc1ca0c7ebb6ed3378acb371ec408ac6d34a3f7f49c921644ef31ebad1c1c1c8a69ec464f8602ca3e4518ac4dc20971d753dfa041cf6fac24c1b15
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SSDEEP
3072:1FJsgTY5NPqTArcRBEMApCSL20+INhjDHnsYl+8mm:1FFTY5xZAgLNNhjDHsY+
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-06_bc9ea6468dd2f86278dd48f5f8805556_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-06_bc9ea6468dd2f86278dd48f5f8805556_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-06_bc9ea6468dd2f86278dd48f5f8805556_virlock
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Size
142KB
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MD5
bc9ea6468dd2f86278dd48f5f8805556
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SHA1
e5b9b711101c3240dcc66ad1011bc8d0c3ef2fcc
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SHA256
b24f9143d07595136d766c1214d3f62ec76989a1ca1c6b9047e0170d32db95f1
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SHA512
764cc6a8f5bc1ca0c7ebb6ed3378acb371ec408ac6d34a3f7f49c921644ef31ebad1c1c1c8a69ec464f8602ca3e4518ac4dc20971d753dfa041cf6fac24c1b15
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SSDEEP
3072:1FJsgTY5NPqTArcRBEMApCSL20+INhjDHnsYl+8mm:1FFTY5xZAgLNNhjDHsY+
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (76) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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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