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General
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Target
2024-09-27_24ac9c6e989b5d7624e35a161746b213_virlock
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Size
121KB
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Sample
240927-me5yzazhja
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MD5
24ac9c6e989b5d7624e35a161746b213
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SHA1
ac3e10b9bcb9b5c7f6e7e3eb3d3051e6bf02f873
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SHA256
0abc2028782c87618854f9c04218ec5f60f579bd9c3fb1882f268f1b19b35c5a
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SHA512
10582c1b96193d4833fe8eaaf8166ea43b646a08f7c6303dddcdd298e774bdfb663c6e581eb9a54dd984b096b8f2695db34b5bf0123c2633967d9cd82e38df14
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SSDEEP
1536:CV+YuVqHH7RBxtM9pJmbw+uLszXn6hbRhWjYxUWvUgea4nnF6wRohw3r:E+YGSHJtUV+uozXM6lnF6a3r
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-27_24ac9c6e989b5d7624e35a161746b213_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-27_24ac9c6e989b5d7624e35a161746b213_virlock.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
2024-09-27_24ac9c6e989b5d7624e35a161746b213_virlock
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Size
121KB
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MD5
24ac9c6e989b5d7624e35a161746b213
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SHA1
ac3e10b9bcb9b5c7f6e7e3eb3d3051e6bf02f873
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SHA256
0abc2028782c87618854f9c04218ec5f60f579bd9c3fb1882f268f1b19b35c5a
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SHA512
10582c1b96193d4833fe8eaaf8166ea43b646a08f7c6303dddcdd298e774bdfb663c6e581eb9a54dd984b096b8f2695db34b5bf0123c2633967d9cd82e38df14
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SSDEEP
1536:CV+YuVqHH7RBxtM9pJmbw+uLszXn6hbRhWjYxUWvUgea4nnF6wRohw3r:E+YGSHJtUV+uozXM6lnF6a3r
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Modifies visibility of file extensions in Explorer
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Renames multiple (81) 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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Deletes itself
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Executes dropped EXE
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Loads dropped DLL
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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 v15
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