General
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Target
2024-06-04_2973be958734116f9b41b7f2ca07241f_virlock
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Size
644KB
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Sample
240604-tc7hcacb7t
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MD5
2973be958734116f9b41b7f2ca07241f
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SHA1
7a77784c268d0710016adb03c649849ac293d572
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SHA256
83678d7770d80c502f3a53c2e65f2c20ec7617b1e74257b59f8cd7e72bfabe87
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SHA512
745eac9707ed24363866c5f4da8519f760f92604f2427b5e2182b10ee859269f1d220f1f8b33fa0498e3e28df3640d129caddfcb3bb30a693f66fffd9476efd1
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SSDEEP
12288:+BxDgjtkPRvVLd3yRUjleSD/xYvvmyi8a9BWVzWV6EBPvx9viXc0pXpDv:kx8jtkPZVLBkU5XJ+vY8ayEtP
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-04_2973be958734116f9b41b7f2ca07241f_virlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-04_2973be958734116f9b41b7f2ca07241f_virlock.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-06-04_2973be958734116f9b41b7f2ca07241f_virlock
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Size
644KB
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MD5
2973be958734116f9b41b7f2ca07241f
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SHA1
7a77784c268d0710016adb03c649849ac293d572
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SHA256
83678d7770d80c502f3a53c2e65f2c20ec7617b1e74257b59f8cd7e72bfabe87
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SHA512
745eac9707ed24363866c5f4da8519f760f92604f2427b5e2182b10ee859269f1d220f1f8b33fa0498e3e28df3640d129caddfcb3bb30a693f66fffd9476efd1
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SSDEEP
12288:+BxDgjtkPRvVLd3yRUjleSD/xYvvmyi8a9BWVzWV6EBPvx9viXc0pXpDv:kx8jtkPZVLBkU5XJ+vY8ayEtP
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