General
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Target
2024-04-07_8ea7c9ce430064f103389cfd7a1c6cd3_virlock
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Size
254KB
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Sample
240407-zgvl8sed29
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MD5
8ea7c9ce430064f103389cfd7a1c6cd3
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SHA1
9ae3a0a22f6f54db9d8df3b299537f5c9c1034dc
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SHA256
cd5dc531ed2985b7f86bbea0692cb6fe98a68bc5e90c370125b3f1a7e37b5658
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SHA512
7b920ed2dfbf33028e583e9f090b204f83473bbd3328b5d6a14c42cf53c976fbe5dd444919eecfd52a10dcfe2f80ffafdeade1f77184f0806f4aec92ce971046
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SSDEEP
3072:A0E2yP4lCpTsRlbtZEtnsbHW2IYFeDLquCkhufoBQkOwFA4dg:LupgnbQsrVIY9ufx33dg
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-07_8ea7c9ce430064f103389cfd7a1c6cd3_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-07_8ea7c9ce430064f103389cfd7a1c6cd3_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-07_8ea7c9ce430064f103389cfd7a1c6cd3_virlock
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Size
254KB
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MD5
8ea7c9ce430064f103389cfd7a1c6cd3
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SHA1
9ae3a0a22f6f54db9d8df3b299537f5c9c1034dc
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SHA256
cd5dc531ed2985b7f86bbea0692cb6fe98a68bc5e90c370125b3f1a7e37b5658
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SHA512
7b920ed2dfbf33028e583e9f090b204f83473bbd3328b5d6a14c42cf53c976fbe5dd444919eecfd52a10dcfe2f80ffafdeade1f77184f0806f4aec92ce971046
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SSDEEP
3072:A0E2yP4lCpTsRlbtZEtnsbHW2IYFeDLquCkhufoBQkOwFA4dg:LupgnbQsrVIY9ufx33dg
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (80) 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