General
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Target
2025-05-19_f3d61f29c7b5f6cc16aa8e0879579775_elex_virlock
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Size
202KB
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Sample
250519-nasnhsfk2v
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MD5
f3d61f29c7b5f6cc16aa8e0879579775
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SHA1
4261e3f55659e9bd2edbf4b14cb399e1409646b6
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SHA256
3c0d9ac742083511f02d817f6d07307cf46b0ead6075764672332431b96a08e4
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SHA512
859527eec7ff43d65eda9199268898859a7d22ef17cd2114c363eb6672410a2de37e911a88bbb2075edaf8a6d64408be1bdfa638a89be5bbed466d23136cf87d
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SSDEEP
6144:Jc/0q4CsyxER/QSRb2C2J8N5eylJY9vS9zw:JATFaR/zb7N5949q
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-19_f3d61f29c7b5f6cc16aa8e0879579775_elex_virlock.exe
Resource
win10v2004-20250502-en
Malware Config
Targets
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Target
2025-05-19_f3d61f29c7b5f6cc16aa8e0879579775_elex_virlock
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Size
202KB
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MD5
f3d61f29c7b5f6cc16aa8e0879579775
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SHA1
4261e3f55659e9bd2edbf4b14cb399e1409646b6
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SHA256
3c0d9ac742083511f02d817f6d07307cf46b0ead6075764672332431b96a08e4
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SHA512
859527eec7ff43d65eda9199268898859a7d22ef17cd2114c363eb6672410a2de37e911a88bbb2075edaf8a6d64408be1bdfa638a89be5bbed466d23136cf87d
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SSDEEP
6144:Jc/0q4CsyxER/QSRb2C2J8N5eylJY9vS9zw:JATFaR/zb7N5949q
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (88) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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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