General
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Target
2025-07-01_f3357cb6de5ea95feaf2212db27be2a2_elex_virlock
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Size
777KB
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Sample
250701-jjwdjstjy7
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MD5
f3357cb6de5ea95feaf2212db27be2a2
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SHA1
4fc989e0207141daf204d1926d058a53a8f4cde8
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SHA256
6990492bc171ff1466994fa8db494ab2411d5eb4081c21ab6f52d43c5c1206e7
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SHA512
58106ab54cc9bbf20be51adf99e81149935410e30e667a4f6ba71f9df4bef5d50999892f8facf26f453b19425cb8d3df53ab952ecc11cd08531c67e85d0caa49
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SSDEEP
3072:IbI2ZjCdaF+qi7Y7nPr3w6srBarSvFcA4WDm6zoual5sE0Mie:IbI2ZjCgF+h7Y7nbw6srBargc5+zRU
Static task
static1
Behavioral task
behavioral1
Sample
2025-07-01_f3357cb6de5ea95feaf2212db27be2a2_elex_virlock.exe
Resource
win10v2004-20250610-en
Behavioral task
behavioral2
Sample
2025-07-01_f3357cb6de5ea95feaf2212db27be2a2_elex_virlock.exe
Resource
win11-20250610-en
Malware Config
Targets
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Target
2025-07-01_f3357cb6de5ea95feaf2212db27be2a2_elex_virlock
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Size
777KB
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MD5
f3357cb6de5ea95feaf2212db27be2a2
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SHA1
4fc989e0207141daf204d1926d058a53a8f4cde8
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SHA256
6990492bc171ff1466994fa8db494ab2411d5eb4081c21ab6f52d43c5c1206e7
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SHA512
58106ab54cc9bbf20be51adf99e81149935410e30e667a4f6ba71f9df4bef5d50999892f8facf26f453b19425cb8d3df53ab952ecc11cd08531c67e85d0caa49
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SSDEEP
3072:IbI2ZjCdaF+qi7Y7nPr3w6srBarSvFcA4WDm6zoual5sE0Mie:IbI2ZjCgF+h7Y7nbw6srBargc5+zRU
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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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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