General
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Target
2025-05-29_f15c70de6d25ec55e5836323f989ec40_elex_virlock
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Size
633KB
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Sample
250529-3rtdpscq5v
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MD5
f15c70de6d25ec55e5836323f989ec40
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SHA1
89cdc044b3f3ef866d756d5fed791367a835637f
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SHA256
f47c49f127c3f7d9efe323aff94c120c58e2e6a94385fd2d652993152e995bba
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SHA512
a21418ff192be1673830a85b49557c28e5990f055203f306df51cd5ecf56dbff06192f464ade18707e1801a387ed8f3dd3e6d40715acc8a5fdf7230e5bca7167
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SSDEEP
12288:ST4W10BeKxwXFhsozBW3QtedpnI+27zDfPIX42X+t:xBiVh5WgsnI+273Ao2X8
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-29_f15c70de6d25ec55e5836323f989ec40_elex_virlock.exe
Resource
win10v2004-20250502-en
Malware Config
Targets
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Target
2025-05-29_f15c70de6d25ec55e5836323f989ec40_elex_virlock
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Size
633KB
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MD5
f15c70de6d25ec55e5836323f989ec40
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SHA1
89cdc044b3f3ef866d756d5fed791367a835637f
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SHA256
f47c49f127c3f7d9efe323aff94c120c58e2e6a94385fd2d652993152e995bba
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SHA512
a21418ff192be1673830a85b49557c28e5990f055203f306df51cd5ecf56dbff06192f464ade18707e1801a387ed8f3dd3e6d40715acc8a5fdf7230e5bca7167
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SSDEEP
12288:ST4W10BeKxwXFhsozBW3QtedpnI+27zDfPIX42X+t:xBiVh5WgsnI+273Ao2X8
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (87) 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