General
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Target
2024-11-12_19b0d39415c5558f598735a97c65c1a6_virlock
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Size
564KB
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Sample
241112-mtncga1clk
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MD5
19b0d39415c5558f598735a97c65c1a6
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SHA1
16cdb915b697cbefe1818db8f5a3e2df3da99408
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SHA256
2c90864faf1bc6590790afd78072ffff8aa94d9f060ee76003867fe80d9ba70f
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SHA512
c9639d2f426954125fb250d019d48b85139a22e5fd83537ffa886cf821ff5c85cd5fe661735b4bd5277a9d42d01f3f9b373c2c26b4e271bd19c5a95342a5b517
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SSDEEP
12288:cRI8j8kRyUusRu0lRf56HcOnOKByDA4K:cRfhIUusRu0lh56HcOnJyDAv
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-12_19b0d39415c5558f598735a97c65c1a6_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-12_19b0d39415c5558f598735a97c65c1a6_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-11-12_19b0d39415c5558f598735a97c65c1a6_virlock
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Size
564KB
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MD5
19b0d39415c5558f598735a97c65c1a6
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SHA1
16cdb915b697cbefe1818db8f5a3e2df3da99408
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SHA256
2c90864faf1bc6590790afd78072ffff8aa94d9f060ee76003867fe80d9ba70f
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SHA512
c9639d2f426954125fb250d019d48b85139a22e5fd83537ffa886cf821ff5c85cd5fe661735b4bd5277a9d42d01f3f9b373c2c26b4e271bd19c5a95342a5b517
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SSDEEP
12288:cRI8j8kRyUusRu0lRf56HcOnOKByDA4K:cRfhIUusRu0lh56HcOnJyDAv
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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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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