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General
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Target
2024-10-25_2d6aaa1b3c1dd4a05cd6d5b204830c87_virlock
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Size
1.0MB
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Sample
241025-y9e7ksskbw
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MD5
2d6aaa1b3c1dd4a05cd6d5b204830c87
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SHA1
bd9ef8d7677da4579d8612a06097d96d29b15d12
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SHA256
5bb366ecb79205330b6bb1ab30a8692bcfcfdde9280b8cb412141d2efb59e715
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SHA512
3d33703f3646f59b7e25330010fc886fb5fd67e28e42d57f484612bea8239723f09e5747184ac66938c4432576877096ec8dde772f2276c0b518e829e71170b6
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SSDEEP
24576:qeZtjSABFCZOCfUUkvuyJj6ztk8NPYXIbaHKJqFlFZ8:fjSmC7cUkvJMYQJqM
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-25_2d6aaa1b3c1dd4a05cd6d5b204830c87_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-25_2d6aaa1b3c1dd4a05cd6d5b204830c87_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-10-25_2d6aaa1b3c1dd4a05cd6d5b204830c87_virlock
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Size
1.0MB
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MD5
2d6aaa1b3c1dd4a05cd6d5b204830c87
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SHA1
bd9ef8d7677da4579d8612a06097d96d29b15d12
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SHA256
5bb366ecb79205330b6bb1ab30a8692bcfcfdde9280b8cb412141d2efb59e715
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SHA512
3d33703f3646f59b7e25330010fc886fb5fd67e28e42d57f484612bea8239723f09e5747184ac66938c4432576877096ec8dde772f2276c0b518e829e71170b6
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SSDEEP
24576:qeZtjSABFCZOCfUUkvuyJj6ztk8NPYXIbaHKJqFlFZ8:fjSmC7cUkvJMYQJqM
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Modifies visibility of file extensions in Explorer
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Renames multiple (80) 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