General
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Target
2025-07-04_48f6979d7f3849aa25ce1ca6fb9d9c00_elex_virlock
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Size
649KB
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Sample
250704-t4l1qawshs
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MD5
48f6979d7f3849aa25ce1ca6fb9d9c00
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SHA1
4862b0f7a518dc7f121e276465ca2ec581e013f7
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SHA256
71bc1ff7edc0b7032669394512a10476097a17c932b4e34f7d301caa2dcf9ca6
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SHA512
4e65d8bbacefa4e299954129729afef655cf2f843a5f2316f03c0af18f3fd6240292c6ecbec84b397cc9a5fa129a368edb02fe3f6944ab740749e501bd17f011
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SSDEEP
12288:/9rtwuiRSYEzGYRuy44Z/asNMGmqMcjASTraDfcf434sYNOxvXpxibmrS9:/LwZRSYBr4Z/tN8hcjASTraDfcf44sYt
Static task
static1
Behavioral task
behavioral1
Sample
2025-07-04_48f6979d7f3849aa25ce1ca6fb9d9c00_elex_virlock.exe
Resource
win10v2004-20250610-en
Behavioral task
behavioral2
Sample
2025-07-04_48f6979d7f3849aa25ce1ca6fb9d9c00_elex_virlock.exe
Resource
win11-20250619-en
Malware Config
Targets
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Target
2025-07-04_48f6979d7f3849aa25ce1ca6fb9d9c00_elex_virlock
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Size
649KB
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MD5
48f6979d7f3849aa25ce1ca6fb9d9c00
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SHA1
4862b0f7a518dc7f121e276465ca2ec581e013f7
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SHA256
71bc1ff7edc0b7032669394512a10476097a17c932b4e34f7d301caa2dcf9ca6
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SHA512
4e65d8bbacefa4e299954129729afef655cf2f843a5f2316f03c0af18f3fd6240292c6ecbec84b397cc9a5fa129a368edb02fe3f6944ab740749e501bd17f011
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SSDEEP
12288:/9rtwuiRSYEzGYRuy44Z/asNMGmqMcjASTraDfcf434sYNOxvXpxibmrS9:/LwZRSYBr4Z/tN8hcjASTraDfcf44sYt
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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