General
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Target
2024-11-15_1b7d59c24815f7a88823f559b851ca56_virlock
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Size
564KB
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Sample
241115-b882yawgqn
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MD5
1b7d59c24815f7a88823f559b851ca56
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SHA1
cf93b14230e29c1a7c1cd068540b7eb656895d5e
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SHA256
11b644c3dd04054c9b1cb898fd2d55ba581ece8e8cfb79d481a7cbcbe8ba44b6
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SHA512
206811525ffdbf289096709fc59a2b7118b76d108bf7356de5dd0ab3f75476dfa39705e7684cd65147498ca2249298963594c2d3b9d880b083ed4dce747c41c4
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SSDEEP
12288:ziNCJjuttzfEBnfcGmzPU0y5j9f0mVYwczKbrx:zawjuw9GkPpczE
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-15_1b7d59c24815f7a88823f559b851ca56_virlock.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-15_1b7d59c24815f7a88823f559b851ca56_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-11-15_1b7d59c24815f7a88823f559b851ca56_virlock
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Size
564KB
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MD5
1b7d59c24815f7a88823f559b851ca56
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SHA1
cf93b14230e29c1a7c1cd068540b7eb656895d5e
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SHA256
11b644c3dd04054c9b1cb898fd2d55ba581ece8e8cfb79d481a7cbcbe8ba44b6
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SHA512
206811525ffdbf289096709fc59a2b7118b76d108bf7356de5dd0ab3f75476dfa39705e7684cd65147498ca2249298963594c2d3b9d880b083ed4dce747c41c4
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SSDEEP
12288:ziNCJjuttzfEBnfcGmzPU0y5j9f0mVYwczKbrx:zawjuw9GkPpczE
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Modifies visibility of file extensions in Explorer
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Renames multiple (91) 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