General
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Target
2024-05-25_75dcf54de99a24c5441e3261363bebfe_virlock
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Size
339KB
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Sample
240525-1tsh3sbh2v
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MD5
75dcf54de99a24c5441e3261363bebfe
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SHA1
ae5c44a57f0f0e3b7149ced69d32194f9b3fccd4
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SHA256
71e28382f1adbc9f48a9498c605d989b248b3ebfb81044d9346dcbaef4372c46
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SHA512
69ee1c3bc32e21a8e1c387b8a46042687d2d50fcb9d69aca5b79cf5421fefe70e49841d91df966109c185f622aa501d486a8d65ab9a5e7af17d2dcf996aef09e
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SSDEEP
6144:MzA/8C15rBffXfg7WmFCCO6CszbhgXQsuf9HezxiNE2lj91oOn:Mw15rRXf6CCrzbdsuf9+zgDu0
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-25_75dcf54de99a24c5441e3261363bebfe_virlock.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-25_75dcf54de99a24c5441e3261363bebfe_virlock.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
2024-05-25_75dcf54de99a24c5441e3261363bebfe_virlock
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Size
339KB
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MD5
75dcf54de99a24c5441e3261363bebfe
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SHA1
ae5c44a57f0f0e3b7149ced69d32194f9b3fccd4
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SHA256
71e28382f1adbc9f48a9498c605d989b248b3ebfb81044d9346dcbaef4372c46
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SHA512
69ee1c3bc32e21a8e1c387b8a46042687d2d50fcb9d69aca5b79cf5421fefe70e49841d91df966109c185f622aa501d486a8d65ab9a5e7af17d2dcf996aef09e
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SSDEEP
6144:MzA/8C15rBffXfg7WmFCCO6CszbhgXQsuf9HezxiNE2lj91oOn:Mw15rRXf6CCrzbdsuf9+zgDu0
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (61) 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