General
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Target
2024-05-15_f1182f3f9c134edee1e71f373cccdf5e_virlock
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Size
201KB
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Sample
240515-nt8tvafh47
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MD5
f1182f3f9c134edee1e71f373cccdf5e
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SHA1
97ccbca0cf004a67c245c1fe33b68a62ec833c5e
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SHA256
4faba2d229cf714c370f43b9e1a095f1347c8faf26179306ad601529b12187a4
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SHA512
7f8003f390f8cd6d959a8bc5d120b01894f36f76fb559062695039f46769d5be8727d871f1c7bae13ad3683c6df958285cbb521236ad256efdf8d44e20798c3f
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SSDEEP
6144:/3XQuTBvz5HAyiqIWQvansh3IA7gOhM7XvF:/3XQuTlz5oqITansh44pU/
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-15_f1182f3f9c134edee1e71f373cccdf5e_virlock.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-15_f1182f3f9c134edee1e71f373cccdf5e_virlock.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
2024-05-15_f1182f3f9c134edee1e71f373cccdf5e_virlock
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Size
201KB
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MD5
f1182f3f9c134edee1e71f373cccdf5e
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SHA1
97ccbca0cf004a67c245c1fe33b68a62ec833c5e
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SHA256
4faba2d229cf714c370f43b9e1a095f1347c8faf26179306ad601529b12187a4
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SHA512
7f8003f390f8cd6d959a8bc5d120b01894f36f76fb559062695039f46769d5be8727d871f1c7bae13ad3683c6df958285cbb521236ad256efdf8d44e20798c3f
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SSDEEP
6144:/3XQuTBvz5HAyiqIWQvansh3IA7gOhM7XvF:/3XQuTlz5oqITansh44pU/
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (51) 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