General
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Target
2025-05-29_dc315c7f9c4d66148fc24f1b86aa12ca_elex_virlock
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Size
211KB
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Sample
250529-ltxqgabm5w
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MD5
dc315c7f9c4d66148fc24f1b86aa12ca
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SHA1
39496ea1d53c08a6ace6e2e0b79045a3a41a2679
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SHA256
d27e1abb8356cad7d92e309a85ee16ee9a8f67daa3f04182fd62ba73bb3cfd41
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SHA512
a2e865684ffa4eba3a58cf8e0fc9bc2aaa5c4c0247555744c63605c96bc6bcb7e84b5fda2ce0f5c87d2584f9b44cf8c453526a8e1d39483e761527cd73ebfdbc
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SSDEEP
6144:UEO+wgrVXpy2DjRj0jYvjUjNjujDj9jj6jj/Jq8hrU5BEFkKBZEDctH:Uf+wxJtS5BEkKBZED
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-29_dc315c7f9c4d66148fc24f1b86aa12ca_elex_virlock.exe
Resource
win10v2004-20250502-en
Malware Config
Targets
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Target
2025-05-29_dc315c7f9c4d66148fc24f1b86aa12ca_elex_virlock
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Size
211KB
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MD5
dc315c7f9c4d66148fc24f1b86aa12ca
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SHA1
39496ea1d53c08a6ace6e2e0b79045a3a41a2679
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SHA256
d27e1abb8356cad7d92e309a85ee16ee9a8f67daa3f04182fd62ba73bb3cfd41
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SHA512
a2e865684ffa4eba3a58cf8e0fc9bc2aaa5c4c0247555744c63605c96bc6bcb7e84b5fda2ce0f5c87d2584f9b44cf8c453526a8e1d39483e761527cd73ebfdbc
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SSDEEP
6144:UEO+wgrVXpy2DjRj0jYvjUjNjujDj9jj6jj/Jq8hrU5BEFkKBZEDctH:Uf+wxJtS5BEkKBZED
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (83) 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