General
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Target
2024-04-03_9b4441b627ea2543daa1d677b44ca39d_virlock
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Size
253KB
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Sample
240403-ye6faabb55
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MD5
9b4441b627ea2543daa1d677b44ca39d
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SHA1
4159e10356d7b4ff199a19024bf0917fb748b810
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SHA256
41ed0c58f84c4950c825122823e906166f0f88e99c7b22949a62f96dc2e95d4b
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SHA512
0238f574ed70f6ab83950ac42094f0b471544cc56a874172ca05f2a15e7e064b5f2d0510edba2c35724f629f650b3ed6e38bc7bf4c19dc34a9414551f62f4622
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SSDEEP
6144:1yjyPtkSwwM25LXmwUfTavMdBfTNc6KyH30iXhR3:1yjyFkSwwcwgakPfpj7HkiL
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-03_9b4441b627ea2543daa1d677b44ca39d_virlock.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-04-03_9b4441b627ea2543daa1d677b44ca39d_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-03_9b4441b627ea2543daa1d677b44ca39d_virlock
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Size
253KB
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MD5
9b4441b627ea2543daa1d677b44ca39d
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SHA1
4159e10356d7b4ff199a19024bf0917fb748b810
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SHA256
41ed0c58f84c4950c825122823e906166f0f88e99c7b22949a62f96dc2e95d4b
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SHA512
0238f574ed70f6ab83950ac42094f0b471544cc56a874172ca05f2a15e7e064b5f2d0510edba2c35724f629f650b3ed6e38bc7bf4c19dc34a9414551f62f4622
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SSDEEP
6144:1yjyPtkSwwM25LXmwUfTavMdBfTNc6KyH30iXhR3:1yjyFkSwwcwgakPfpj7HkiL
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (55) 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
1