General
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Target
2025-05-15_b05225c514e5d0e266d4542e51ab184f_elex_virlock
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Size
569KB
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Sample
250516-ave19sszgx
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MD5
b05225c514e5d0e266d4542e51ab184f
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SHA1
41527b258f9611adfe76900f62c097c7aea10266
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SHA256
82f6c7af81aac4bd5bae554e97e212c4e6cbe2ee67894d292a3710472b43b466
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SHA512
cf9ad63332a03f5236758604268c7b41253fc12a2907378cf3598f7f4bf69930ef202c40b4aebbd6ada6394387e93216927074900be924e002c2106efacddf51
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SSDEEP
12288:NnBliQMXR7KlrjkvCKRGY8wozZ9mNX/uedD2HkGIlAdoTkynhc/C8xJcGMg58z:nlip8wiZANXmeojOAWTkY8xJcxz
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-15_b05225c514e5d0e266d4542e51ab184f_elex_virlock.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2025-05-15_b05225c514e5d0e266d4542e51ab184f_elex_virlock.exe
Resource
win11-20250502-en
Malware Config
Targets
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Target
2025-05-15_b05225c514e5d0e266d4542e51ab184f_elex_virlock
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Size
569KB
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MD5
b05225c514e5d0e266d4542e51ab184f
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SHA1
41527b258f9611adfe76900f62c097c7aea10266
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SHA256
82f6c7af81aac4bd5bae554e97e212c4e6cbe2ee67894d292a3710472b43b466
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SHA512
cf9ad63332a03f5236758604268c7b41253fc12a2907378cf3598f7f4bf69930ef202c40b4aebbd6ada6394387e93216927074900be924e002c2106efacddf51
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SSDEEP
12288:NnBliQMXR7KlrjkvCKRGY8wozZ9mNX/uedD2HkGIlAdoTkynhc/C8xJcGMg58z:nlip8wiZANXmeojOAWTkY8xJcxz
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (100) 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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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