General
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Target
2024-11-06_47020a318e1d6ddfbf80785e81954c84_virlock
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Size
111KB
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Sample
241106-cx52kswjdm
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MD5
47020a318e1d6ddfbf80785e81954c84
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SHA1
d5a4dcf3e6d44cd0169fbe0fff991eb2a8e829e6
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SHA256
e70d8ddf1d0a28a9dd8c43e79c6a67e100a531cd4be851da7712aa8351e27162
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SHA512
a4d369be9f6db4f18eeb97e8154482dc17ece1c0bdb5193427c66d18dece25d031b1e485e81fb1314c84ece576d9b4e461f6732d7a83d4e1e7d172f6c7ed1a26
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SSDEEP
3072:JKtFxnQOsoccftGhk9gkDWP3KyAyi16ArwzQGlRZ:JKtNsrcfLgLAyO7rwzQC
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-06_47020a318e1d6ddfbf80785e81954c84_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-06_47020a318e1d6ddfbf80785e81954c84_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-11-06_47020a318e1d6ddfbf80785e81954c84_virlock
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Size
111KB
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MD5
47020a318e1d6ddfbf80785e81954c84
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SHA1
d5a4dcf3e6d44cd0169fbe0fff991eb2a8e829e6
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SHA256
e70d8ddf1d0a28a9dd8c43e79c6a67e100a531cd4be851da7712aa8351e27162
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SHA512
a4d369be9f6db4f18eeb97e8154482dc17ece1c0bdb5193427c66d18dece25d031b1e485e81fb1314c84ece576d9b4e461f6732d7a83d4e1e7d172f6c7ed1a26
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SSDEEP
3072:JKtFxnQOsoccftGhk9gkDWP3KyAyi16ArwzQGlRZ:JKtNsrcfLgLAyO7rwzQC
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Modifies visibility of file extensions in Explorer
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Renames multiple (83) 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