General
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Target
2025-07-01_bde3f8cf4ce3eca331b6e8148bc936b4_elex_virlock
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Size
225KB
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Sample
250701-j618bassgw
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MD5
bde3f8cf4ce3eca331b6e8148bc936b4
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SHA1
0f10c2c2d00126cc007c5de9b107e24e66b28328
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SHA256
4ba21633211fb5ff53576b91d77dec288c795bef50a9c945799c6709b5ee6a50
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SHA512
dfd40dbc69231230c22ad23869107d66a21564b2ec3c29780b15c83de9572d7a7fe4c077ef16ce5f43d56fec20b8a3404abafeefb19568cb3042eb616699786b
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SSDEEP
3072:xtKGpU8k1aWVbLTw+MyWYDSIwfcfyQUfClMMCgu7btZkwBAlQtkSX9iu:xtKD8JE3Tw+GzMyQUfKMM9q0ps9iu
Static task
static1
Behavioral task
behavioral1
Sample
2025-07-01_bde3f8cf4ce3eca331b6e8148bc936b4_elex_virlock.exe
Resource
win10v2004-20250619-en
Behavioral task
behavioral2
Sample
2025-07-01_bde3f8cf4ce3eca331b6e8148bc936b4_elex_virlock.exe
Resource
win11-20250610-en
Malware Config
Targets
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Target
2025-07-01_bde3f8cf4ce3eca331b6e8148bc936b4_elex_virlock
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Size
225KB
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MD5
bde3f8cf4ce3eca331b6e8148bc936b4
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SHA1
0f10c2c2d00126cc007c5de9b107e24e66b28328
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SHA256
4ba21633211fb5ff53576b91d77dec288c795bef50a9c945799c6709b5ee6a50
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SHA512
dfd40dbc69231230c22ad23869107d66a21564b2ec3c29780b15c83de9572d7a7fe4c077ef16ce5f43d56fec20b8a3404abafeefb19568cb3042eb616699786b
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SSDEEP
3072:xtKGpU8k1aWVbLTw+MyWYDSIwfcfyQUfClMMCgu7btZkwBAlQtkSX9iu:xtKD8JE3Tw+GzMyQUfKMM9q0ps9iu
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (91) 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