General
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Target
2024-04-28_cf0c646a02ebd2ae64650ca17c2ec244_virlock
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Size
564KB
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Sample
240428-p2pavagb72
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MD5
cf0c646a02ebd2ae64650ca17c2ec244
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SHA1
0eaf5f434b1d8e53aec4a568fddd631988867a86
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SHA256
e6ffe62c0a5882e1b58981438f611167733596748a060cb4dcf6b89f41701f7f
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SHA512
2e6e049861a2c8be9d74c7650b69cf4e85b34aaddf1a709369e412f8ab75bfa154ee5b893375e121e9e14ff0a647624601c03ac14246a7777c57c07fb4cfa985
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SSDEEP
6144:4ZmZhqawpZXx2/vRKF+zdDieZQCFVdeCCxqC2si7rqVOPipTThQZX8xuPrMETKdv:PqaUqzLaqdhC2si72MapTThQZXzQE6w
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-28_cf0c646a02ebd2ae64650ca17c2ec244_virlock.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-28_cf0c646a02ebd2ae64650ca17c2ec244_virlock.exe
Resource
win10v2004-20240419-en
Malware Config
Targets
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Target
2024-04-28_cf0c646a02ebd2ae64650ca17c2ec244_virlock
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Size
564KB
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MD5
cf0c646a02ebd2ae64650ca17c2ec244
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SHA1
0eaf5f434b1d8e53aec4a568fddd631988867a86
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SHA256
e6ffe62c0a5882e1b58981438f611167733596748a060cb4dcf6b89f41701f7f
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SHA512
2e6e049861a2c8be9d74c7650b69cf4e85b34aaddf1a709369e412f8ab75bfa154ee5b893375e121e9e14ff0a647624601c03ac14246a7777c57c07fb4cfa985
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SSDEEP
6144:4ZmZhqawpZXx2/vRKF+zdDieZQCFVdeCCxqC2si7rqVOPipTThQZX8xuPrMETKdv:PqaUqzLaqdhC2si72MapTThQZXzQE6w
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (82) 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