General
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Target
2025-05-30_39ce97d1b570ef7b0aee69c1c005f9f3_elex_virlock
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Size
309KB
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Sample
250530-at5kjacj8y
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MD5
39ce97d1b570ef7b0aee69c1c005f9f3
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SHA1
b5806054232ef2d0043f4ddb145137872c1cbfe4
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SHA256
f9980f2caf8a6f38d5434fb3286f6354fa9bd9ca9d013b85b02a2bef56b6ed2c
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SHA512
e6fe74856e09ef5b75b6b38db3fda2c984d52d3c85089ac775823ad826c29b3f073634a247370d505996ea370409ea25f0ec79086692e4d953e9662fe6a55e59
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SSDEEP
6144:3rSGjorU4CddYEBFYW70+TtxpeJJoRjAUe:3mlNCWEBFn0+1swAX
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-30_39ce97d1b570ef7b0aee69c1c005f9f3_elex_virlock.exe
Resource
win10v2004-20250502-en
Malware Config
Targets
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Target
2025-05-30_39ce97d1b570ef7b0aee69c1c005f9f3_elex_virlock
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Size
309KB
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MD5
39ce97d1b570ef7b0aee69c1c005f9f3
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SHA1
b5806054232ef2d0043f4ddb145137872c1cbfe4
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SHA256
f9980f2caf8a6f38d5434fb3286f6354fa9bd9ca9d013b85b02a2bef56b6ed2c
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SHA512
e6fe74856e09ef5b75b6b38db3fda2c984d52d3c85089ac775823ad826c29b3f073634a247370d505996ea370409ea25f0ec79086692e4d953e9662fe6a55e59
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SSDEEP
6144:3rSGjorU4CddYEBFYW70+TtxpeJJoRjAUe:3mlNCWEBFn0+1swAX
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (92) 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