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General
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Target
2024-03-04_35b386dafc27af8cc78d5925529f2cf9_virlock
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Size
255KB
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Sample
240304-qmt38acc78
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MD5
35b386dafc27af8cc78d5925529f2cf9
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SHA1
ec08ffa933883f9dfddacf84f440a5516001cabc
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SHA256
242afd19edb51cf34e457ec85eed898d9c6205700827bee2a7ac23cff9580137
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SHA512
290b5293339fcfc3bd4f3e22a573302defb49f94cd46c0573b658c004ebe512a6ff59634bf1dc6cce69d22c1dec9647919dfe1f321bed3f6d1c269793191b709
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SSDEEP
6144:MjKGozCTPblKg/utqwqTyfmK4CP/jHuR2Q:MjKeXlKg/uwwqmfmLCuX
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-04_35b386dafc27af8cc78d5925529f2cf9_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-04_35b386dafc27af8cc78d5925529f2cf9_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-03-04_35b386dafc27af8cc78d5925529f2cf9_virlock
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Size
255KB
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MD5
35b386dafc27af8cc78d5925529f2cf9
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SHA1
ec08ffa933883f9dfddacf84f440a5516001cabc
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SHA256
242afd19edb51cf34e457ec85eed898d9c6205700827bee2a7ac23cff9580137
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SHA512
290b5293339fcfc3bd4f3e22a573302defb49f94cd46c0573b658c004ebe512a6ff59634bf1dc6cce69d22c1dec9647919dfe1f321bed3f6d1c269793191b709
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SSDEEP
6144:MjKGozCTPblKg/utqwqTyfmK4CP/jHuR2Q:MjKeXlKg/uwwqmfmLCuX
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (89) 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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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