General
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Target
2024-10-27_883df6020272d5d3fa4cf7fd804b86cf_virlock
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Size
346KB
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Sample
241027-w2nsmszhlc
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MD5
883df6020272d5d3fa4cf7fd804b86cf
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SHA1
19d8e0647f940c83643e41f28c3f01f7a4a14851
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SHA256
9c29ef9a0f4ad4c04a4a9a60b93c9d84facdbf5ed254a8a9262ae9ff533a6723
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SHA512
ad490fc85eed12d4b7dfd08353bb2712961536d5d74e95a8abdc22c29b8223bc7370a07a9bc65051db2b698aaf3bbe8b0b03bb67ac97898ea8868ef0ba50311b
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SSDEEP
6144:87QnWDKNgIeV4TgzPKVtNo9y7mA9YZhkGwhrvHPmKGzlfd:87QyKNGqTuPwoGVGwhC5zl1
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-27_883df6020272d5d3fa4cf7fd804b86cf_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-27_883df6020272d5d3fa4cf7fd804b86cf_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-10-27_883df6020272d5d3fa4cf7fd804b86cf_virlock
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Size
346KB
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MD5
883df6020272d5d3fa4cf7fd804b86cf
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SHA1
19d8e0647f940c83643e41f28c3f01f7a4a14851
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SHA256
9c29ef9a0f4ad4c04a4a9a60b93c9d84facdbf5ed254a8a9262ae9ff533a6723
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SHA512
ad490fc85eed12d4b7dfd08353bb2712961536d5d74e95a8abdc22c29b8223bc7370a07a9bc65051db2b698aaf3bbe8b0b03bb67ac97898ea8868ef0ba50311b
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SSDEEP
6144:87QnWDKNgIeV4TgzPKVtNo9y7mA9YZhkGwhrvHPmKGzlfd:87QyKNGqTuPwoGVGwhC5zl1
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Modifies visibility of file extensions in Explorer
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Renames multiple (86) 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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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