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General
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Target
2024-08-05_270ed136d56c54fbfb1966632b078e73_virlock
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Size
191KB
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Sample
240805-mgn38stckq
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MD5
270ed136d56c54fbfb1966632b078e73
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SHA1
ac3844f6244e9526d4ac5767eafdc8164148df14
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SHA256
8eb1341e2664ecc472650204fdcb53f928340d4c668715c7950871aecd109dca
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SHA512
32d9740d6f8affe38af5db877a8005d3c380df36a23e38b6e131c37d533a1f84e12dc658ac23f72ef6bf8c970bfa2d070f70f98b8702567cf46fe5f213dde69a
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SSDEEP
3072:RE9pPhTb7j4r4pQJUNpRXxBd6SsJ8TSZarF7bphNXB0d/bwx5RssBdxVqonXHxXT:RE9pP97j4r4cUNpRXxBd6SsJ8TSZaZ73
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-05_270ed136d56c54fbfb1966632b078e73_virlock.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-05_270ed136d56c54fbfb1966632b078e73_virlock.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
2024-08-05_270ed136d56c54fbfb1966632b078e73_virlock
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Size
191KB
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MD5
270ed136d56c54fbfb1966632b078e73
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SHA1
ac3844f6244e9526d4ac5767eafdc8164148df14
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SHA256
8eb1341e2664ecc472650204fdcb53f928340d4c668715c7950871aecd109dca
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SHA512
32d9740d6f8affe38af5db877a8005d3c380df36a23e38b6e131c37d533a1f84e12dc658ac23f72ef6bf8c970bfa2d070f70f98b8702567cf46fe5f213dde69a
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SSDEEP
3072:RE9pPhTb7j4r4pQJUNpRXxBd6SsJ8TSZarF7bphNXB0d/bwx5RssBdxVqonXHxXT:RE9pP97j4r4cUNpRXxBd6SsJ8TSZaZ73
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Modifies visibility of file extensions in Explorer
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Renames multiple (79) 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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4