General
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Target
2025-05-02_a8968f7ec86b512dee8399339a21f6a2_elex_virlock
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Size
206KB
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Sample
250502-nxxwrabq9x
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MD5
a8968f7ec86b512dee8399339a21f6a2
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SHA1
086e24db3b38487875f3b078a67494c8cbf474b4
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SHA256
aa4d3447a646818e840fa6e990b74dbb56fc0a4c9b3d9a7bb365c9b44ea4b039
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SHA512
08774770eefb047abead79dd8b708011d18d558d61283f617901e95b54e077b64570dc30e6ccc7c840eba9c5bf6a2e2c4d45dd9adc1be8dd3af8e9a6ad07e3ca
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SSDEEP
3072:zClwgTWKPDZjQ9+CT0UfP+6LStZbtTpaBSNhhpjKksoPert:ewgTWKPDZWT0p6sZWB6hLGksoPC
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-02_a8968f7ec86b512dee8399339a21f6a2_elex_virlock.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
2025-05-02_a8968f7ec86b512dee8399339a21f6a2_elex_virlock
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Size
206KB
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MD5
a8968f7ec86b512dee8399339a21f6a2
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SHA1
086e24db3b38487875f3b078a67494c8cbf474b4
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SHA256
aa4d3447a646818e840fa6e990b74dbb56fc0a4c9b3d9a7bb365c9b44ea4b039
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SHA512
08774770eefb047abead79dd8b708011d18d558d61283f617901e95b54e077b64570dc30e6ccc7c840eba9c5bf6a2e2c4d45dd9adc1be8dd3af8e9a6ad07e3ca
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SSDEEP
3072:zClwgTWKPDZjQ9+CT0UfP+6LStZbtTpaBSNhhpjKksoPert:ewgTWKPDZWT0p6sZWB6hLGksoPC
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (90) 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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Executes dropped EXE
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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 v16
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