General
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Target
2024-05-24_84db41ae48ddfd09c7a3a95bd3c79480_virlock
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Size
305KB
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Sample
240524-rbz1rsgf53
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MD5
84db41ae48ddfd09c7a3a95bd3c79480
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SHA1
5357c8d133b030deb16eaa1e66a5e95a9077bb01
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SHA256
49b8c899e0ff46e26f225a1406968092440984680f39e08c5f1c3c407f93c6d0
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SHA512
57bedffa8d8435dd739a311508f43281fd8e941f7074447b0670324871c24e4a3b5fb0effb749c42d642231dcac49fb66858b878c114044d3847b0d0bf9b84d7
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SSDEEP
6144:SKAV5z0361/EFJlw2Cp6/LxvHJSnwXls5JdVgpuWJm5w:XAVRx1/EPlj/LxfUnwXliJdVgpudy
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-24_84db41ae48ddfd09c7a3a95bd3c79480_virlock.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-24_84db41ae48ddfd09c7a3a95bd3c79480_virlock.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
2024-05-24_84db41ae48ddfd09c7a3a95bd3c79480_virlock
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Size
305KB
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MD5
84db41ae48ddfd09c7a3a95bd3c79480
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SHA1
5357c8d133b030deb16eaa1e66a5e95a9077bb01
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SHA256
49b8c899e0ff46e26f225a1406968092440984680f39e08c5f1c3c407f93c6d0
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SHA512
57bedffa8d8435dd739a311508f43281fd8e941f7074447b0670324871c24e4a3b5fb0effb749c42d642231dcac49fb66858b878c114044d3847b0d0bf9b84d7
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SSDEEP
6144:SKAV5z0361/EFJlw2Cp6/LxvHJSnwXls5JdVgpuWJm5w:XAVRx1/EPlj/LxfUnwXliJdVgpudy
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (59) 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 Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1