General
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Target
2025-07-04_4b07280aa5cc9aeb068f7b8ab19ce1a0_elex_virlock
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Size
1.6MB
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Sample
250704-t4qc5swp14
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MD5
4b07280aa5cc9aeb068f7b8ab19ce1a0
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SHA1
1f81a0006ddaeada9885b4095dc7dcfea00ad5cb
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SHA256
f95090ece433b1c05cfbba952274f9703fe6ede52408aad7c696852e714bbd45
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SHA512
4e0ac72ebfc3a77e3d77e1479f7664b17f8086a59743a6e81b0b1f2286cb9db56d74fe7d4034b1a171fb826262738ea34d243c4b245f065aef0c0e0f08bea0f2
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SSDEEP
12288:zeZh4HwZHa7HXP+l2SpNNxO7sjqcPJ0lXbszhBPJZrSVBiGLaOt3sPK26SnpXaBg:yZaHeOf+4SHNsby6uQcnHt
Static task
static1
Behavioral task
behavioral1
Sample
2025-07-04_4b07280aa5cc9aeb068f7b8ab19ce1a0_elex_virlock.exe
Resource
win10v2004-20250610-en
Behavioral task
behavioral2
Sample
2025-07-04_4b07280aa5cc9aeb068f7b8ab19ce1a0_elex_virlock.exe
Resource
win11-20250610-en
Malware Config
Targets
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Target
2025-07-04_4b07280aa5cc9aeb068f7b8ab19ce1a0_elex_virlock
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Size
1.6MB
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MD5
4b07280aa5cc9aeb068f7b8ab19ce1a0
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SHA1
1f81a0006ddaeada9885b4095dc7dcfea00ad5cb
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SHA256
f95090ece433b1c05cfbba952274f9703fe6ede52408aad7c696852e714bbd45
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SHA512
4e0ac72ebfc3a77e3d77e1479f7664b17f8086a59743a6e81b0b1f2286cb9db56d74fe7d4034b1a171fb826262738ea34d243c4b245f065aef0c0e0f08bea0f2
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SSDEEP
12288:zeZh4HwZHa7HXP+l2SpNNxO7sjqcPJ0lXbszhBPJZrSVBiGLaOt3sPK26SnpXaBg:yZaHeOf+4SHNsby6uQcnHt
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (76) 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