General
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Target
2025-05-30_38e8cf39e70c73e6bb9892a4fd95523d_elex_virlock
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Size
226KB
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Sample
250530-bt91pa1my9
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MD5
38e8cf39e70c73e6bb9892a4fd95523d
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SHA1
0616b8d9964e530bfb1e63770f3a8dba15a061d9
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SHA256
0fb1064b360654de969f5f099330c6e506a5fa9d96ea9cd74753ca6a4aea951f
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SHA512
047fe9f812fb673834cfac470786a1f80d0f9690b9b5bd000f086b25564a649fb8603afc9af496b6ce17a30f948547dc5c56286821b0513bc99f0a1dd6d70481
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SSDEEP
3072:6QuePYCh8eNt8dLTIbFODD5dfayQqbVLg3tM0D3soPItolXwK9MXV/M8uK3mIVXZ:BwChYL4FOn5dfYqbVPE3galStsimli
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-30_38e8cf39e70c73e6bb9892a4fd95523d_elex_virlock.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2025-05-30_38e8cf39e70c73e6bb9892a4fd95523d_elex_virlock.exe
Resource
win11-20250502-en
Malware Config
Targets
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Target
2025-05-30_38e8cf39e70c73e6bb9892a4fd95523d_elex_virlock
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Size
226KB
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MD5
38e8cf39e70c73e6bb9892a4fd95523d
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SHA1
0616b8d9964e530bfb1e63770f3a8dba15a061d9
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SHA256
0fb1064b360654de969f5f099330c6e506a5fa9d96ea9cd74753ca6a4aea951f
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SHA512
047fe9f812fb673834cfac470786a1f80d0f9690b9b5bd000f086b25564a649fb8603afc9af496b6ce17a30f948547dc5c56286821b0513bc99f0a1dd6d70481
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SSDEEP
3072:6QuePYCh8eNt8dLTIbFODD5dfayQqbVLg3tM0D3soPItolXwK9MXV/M8uK3mIVXZ:BwChYL4FOn5dfYqbVPE3galStsimli
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (89) 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