General
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Target
2024-04-03_9a09071140d404e8fad58688d42d888a_virlock
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Size
710KB
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Sample
240403-xe4e9ahg69
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MD5
9a09071140d404e8fad58688d42d888a
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SHA1
5db1e9d1c031a9c33d0e5d7d6037140cc6b9b71b
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SHA256
019ba77eb3cfe5913c47625dcc9618b4c04f085fc1a0f9e2c68cdc5ef1a569f6
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SHA512
7b2a92df4cb67bb17a82484f7fe267860cec886b8a2f7b70e55093a3460b8a9a2476413aca47aa2cd94738bebc967356ec67296187a7526f60ccb9a36403b31e
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SSDEEP
12288:UOeIegN8HI9Omlo0YhCR/cZ1oVD8SwssbLVkZPBEU1soH1Oc15e+bXeHmA0cq:UrIn0I9OMZR/uqqZvSVBEK1T1UT0B
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-03_9a09071140d404e8fad58688d42d888a_virlock.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-04-03_9a09071140d404e8fad58688d42d888a_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-03_9a09071140d404e8fad58688d42d888a_virlock
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Size
710KB
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MD5
9a09071140d404e8fad58688d42d888a
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SHA1
5db1e9d1c031a9c33d0e5d7d6037140cc6b9b71b
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SHA256
019ba77eb3cfe5913c47625dcc9618b4c04f085fc1a0f9e2c68cdc5ef1a569f6
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SHA512
7b2a92df4cb67bb17a82484f7fe267860cec886b8a2f7b70e55093a3460b8a9a2476413aca47aa2cd94738bebc967356ec67296187a7526f60ccb9a36403b31e
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SSDEEP
12288:UOeIegN8HI9Omlo0YhCR/cZ1oVD8SwssbLVkZPBEU1soH1Oc15e+bXeHmA0cq:UrIn0I9OMZR/uqqZvSVBEK1T1UT0B
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (77) 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