General
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Target
2024-11-21_5c96825d8cd6c41c6d564ffdf7d1675b_virlock
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Size
241KB
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Sample
241121-dezyaayjdt
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MD5
5c96825d8cd6c41c6d564ffdf7d1675b
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SHA1
ed2f9aaa37356cbf0fdb1370d8d580f12e487960
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SHA256
6cf802b773edcd7a7da9dcdeeb36fb2b3209bb616d29010fe90153b0595e2ec4
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SHA512
6b2b5187aff8a90a9f48924bb40cc660e1b1207def30e5902172a883fdb49ed0b08e180bd4d239752190c1f7af010c2c6eb6afe417768b46c481424fe5771a26
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SSDEEP
6144:sh6vAzJiHk5fTX2pGdq2EqkBTnY4zNDfLGrsOiFo/kYRd:sVkH2Da72SK4ZLK/6Kd
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-21_5c96825d8cd6c41c6d564ffdf7d1675b_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-21_5c96825d8cd6c41c6d564ffdf7d1675b_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-11-21_5c96825d8cd6c41c6d564ffdf7d1675b_virlock
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Size
241KB
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MD5
5c96825d8cd6c41c6d564ffdf7d1675b
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SHA1
ed2f9aaa37356cbf0fdb1370d8d580f12e487960
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SHA256
6cf802b773edcd7a7da9dcdeeb36fb2b3209bb616d29010fe90153b0595e2ec4
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SHA512
6b2b5187aff8a90a9f48924bb40cc660e1b1207def30e5902172a883fdb49ed0b08e180bd4d239752190c1f7af010c2c6eb6afe417768b46c481424fe5771a26
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SSDEEP
6144:sh6vAzJiHk5fTX2pGdq2EqkBTnY4zNDfLGrsOiFo/kYRd:sVkH2Da72SK4ZLK/6Kd
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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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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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1