General
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Target
2024-06-13_10f5141d19c63e1f2770208b81ea4e54_virlock
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Size
211KB
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Sample
240613-fbsqxayaqp
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MD5
10f5141d19c63e1f2770208b81ea4e54
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SHA1
2ea187c17134d14de7cddd0de98e1a91ed9e0d79
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SHA256
9b491e2d73b6864890b41ecab4a1f24d0e1d8e72d6c0f1c7613cfc4e77c6a68f
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SHA512
fb95fec92e6d5ff356afd27b9dbe8abad2ff65cf73ff679678f48a7e82e13b844ac0133231e80db9957a55b3b5e0553ca291e360065c1ee1305f608aa0092d45
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SSDEEP
3072:EMggKxb5ct9NaLaViVzx4kLUzDi02owyqwZf2l9cz3nDMrA:fg3xb5qpnlzDegqwZ+9gAs
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-13_10f5141d19c63e1f2770208b81ea4e54_virlock.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-13_10f5141d19c63e1f2770208b81ea4e54_virlock.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
2024-06-13_10f5141d19c63e1f2770208b81ea4e54_virlock
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Size
211KB
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MD5
10f5141d19c63e1f2770208b81ea4e54
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SHA1
2ea187c17134d14de7cddd0de98e1a91ed9e0d79
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SHA256
9b491e2d73b6864890b41ecab4a1f24d0e1d8e72d6c0f1c7613cfc4e77c6a68f
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SHA512
fb95fec92e6d5ff356afd27b9dbe8abad2ff65cf73ff679678f48a7e82e13b844ac0133231e80db9957a55b3b5e0553ca291e360065c1ee1305f608aa0092d45
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SSDEEP
3072:EMggKxb5ct9NaLaViVzx4kLUzDi02owyqwZf2l9cz3nDMrA:fg3xb5qpnlzDegqwZ+9gAs
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (58) 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 Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1