General
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Target
2024-05-22_603265859f744615bb91f46a55c837ef_virlock
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Size
206KB
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Sample
240522-1jh7nahg4w
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MD5
603265859f744615bb91f46a55c837ef
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SHA1
3092544ff20a4dfbc93b9f40df451b0530921e42
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SHA256
99bd1785216647cb7ae901102b93771477fd8659027902cd769c2c5a75490645
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SHA512
b8aca8d07f5997f5d527ab88521fa8d5ab1db52318e8b12ad08e0a8e9e111c64e7b995b29f263259eda16c82cf046335cc49be5e3d4b7f0151932f1b1d650f30
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SSDEEP
3072:ZarrtQNBGldrMfEU+l9Srlru/k1Za42DeH/gF34qCfEmMuv+QUkC6BM6a/:srrtQizrY8aoHV4vJ5veMM6
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-22_603265859f744615bb91f46a55c837ef_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-22_603265859f744615bb91f46a55c837ef_virlock.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
2024-05-22_603265859f744615bb91f46a55c837ef_virlock
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Size
206KB
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MD5
603265859f744615bb91f46a55c837ef
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SHA1
3092544ff20a4dfbc93b9f40df451b0530921e42
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SHA256
99bd1785216647cb7ae901102b93771477fd8659027902cd769c2c5a75490645
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SHA512
b8aca8d07f5997f5d527ab88521fa8d5ab1db52318e8b12ad08e0a8e9e111c64e7b995b29f263259eda16c82cf046335cc49be5e3d4b7f0151932f1b1d650f30
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SSDEEP
3072:ZarrtQNBGldrMfEU+l9Srlru/k1Za42DeH/gF34qCfEmMuv+QUkC6BM6a/:srrtQizrY8aoHV4vJ5veMM6
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (57) 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