General
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Target
2025-05-29_5962530caa312f56fdbd7aa90cf81b2e_elex_virlock
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Size
779KB
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Sample
250529-lnfj1azwgx
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MD5
5962530caa312f56fdbd7aa90cf81b2e
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SHA1
027af0fa4c863e53cb7cccf5fdf6229579dfed11
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SHA256
311d6e54264fe461dec77f26e82b2bbc59179d0996957e7c79afa433ac11a66c
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SHA512
8029bb1a530e29617f0a08ad2da36d767f92f05485ab19bc45098e4b49f57ba959c8cbe76845aa673a0d3b008d275b4c665e8b6c03347c6bfa32c6cb37cf71dd
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SSDEEP
3072:RsbKoXuJA9Z/zH4EV8TjAbjCXn0bDLszD7XvNQS6Uq7kArD/JAS3IfwRkwaI29JX:RUQIJC2Di1R6dvrxnRQH9I+X0G
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-29_5962530caa312f56fdbd7aa90cf81b2e_elex_virlock.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2025-05-29_5962530caa312f56fdbd7aa90cf81b2e_elex_virlock.exe
Resource
win11-20250502-en
Malware Config
Targets
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Target
2025-05-29_5962530caa312f56fdbd7aa90cf81b2e_elex_virlock
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Size
779KB
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MD5
5962530caa312f56fdbd7aa90cf81b2e
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SHA1
027af0fa4c863e53cb7cccf5fdf6229579dfed11
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SHA256
311d6e54264fe461dec77f26e82b2bbc59179d0996957e7c79afa433ac11a66c
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SHA512
8029bb1a530e29617f0a08ad2da36d767f92f05485ab19bc45098e4b49f57ba959c8cbe76845aa673a0d3b008d275b4c665e8b6c03347c6bfa32c6cb37cf71dd
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SSDEEP
3072:RsbKoXuJA9Z/zH4EV8TjAbjCXn0bDLszD7XvNQS6Uq7kArD/JAS3IfwRkwaI29JX:RUQIJC2Di1R6dvrxnRQH9I+X0G
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (88) 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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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