General
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Target
2024-10-06_027cf94c64746df9112500e77ca35971_virlock
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Size
642KB
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Sample
241006-klez1szhnc
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MD5
027cf94c64746df9112500e77ca35971
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SHA1
2efc8a8660fb1f107c0677e554ba975ff21a4243
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SHA256
2652e196189df07679777a2427b9542b75a7b4381ec8b98bd83807bdbdb3bbab
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SHA512
eef1684aa5ea398a7fd95fc2d1312cc3e2e67ffa0d921255c47f737c967aa93636f4f14bb16e571030b5836d787d804e2891177d60b4690f66cf5a6471ae2f3b
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SSDEEP
12288:u5WV1AHltMx0QxsvuYuDc2hqrtgtAY6BsaBPdlQRBNw6dqOEAuT:GWVywR8pPRBsY4RBNwsqOO
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-06_027cf94c64746df9112500e77ca35971_virlock.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-10-06_027cf94c64746df9112500e77ca35971_virlock.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
2024-10-06_027cf94c64746df9112500e77ca35971_virlock
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Size
642KB
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MD5
027cf94c64746df9112500e77ca35971
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SHA1
2efc8a8660fb1f107c0677e554ba975ff21a4243
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SHA256
2652e196189df07679777a2427b9542b75a7b4381ec8b98bd83807bdbdb3bbab
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SHA512
eef1684aa5ea398a7fd95fc2d1312cc3e2e67ffa0d921255c47f737c967aa93636f4f14bb16e571030b5836d787d804e2891177d60b4690f66cf5a6471ae2f3b
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SSDEEP
12288:u5WV1AHltMx0QxsvuYuDc2hqrtgtAY6BsaBPdlQRBNw6dqOEAuT:GWVywR8pPRBsY4RBNwsqOO
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Modifies visibility of file extensions in Explorer
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Renames multiple (60) 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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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