General
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Target
20240614bfbf738fd5d4247871b673a210d78ff0virlock.exe
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Size
204KB
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Sample
240614-1et4cs1anm
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MD5
bfbf738fd5d4247871b673a210d78ff0
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SHA1
38476a8f29ec33644f2439f6cc94db9a1906c9ae
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SHA256
324d5e5bd8f3bfdc812a4728bd2d95aa68ce1d52a476e73b3abb2d0fe3808f00
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SHA512
1d256a98f6557653f50dff180b4f12211db33a4f2b57c051299ae5726f94de31c24a561e3892795a00ed1236047064fb432bb58c196a8b506f2ee3433f522720
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SSDEEP
6144:jiLdwJ5X0SGC7rrYGQJ0qkWfk0NVHlnU7:jSuJ5t2k2nnw
Static task
static1
Behavioral task
behavioral1
Sample
20240614bfbf738fd5d4247871b673a210d78ff0virlock.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
20240614bfbf738fd5d4247871b673a210d78ff0virlock.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
20240614bfbf738fd5d4247871b673a210d78ff0virlock.exe
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Size
204KB
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MD5
bfbf738fd5d4247871b673a210d78ff0
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SHA1
38476a8f29ec33644f2439f6cc94db9a1906c9ae
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SHA256
324d5e5bd8f3bfdc812a4728bd2d95aa68ce1d52a476e73b3abb2d0fe3808f00
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SHA512
1d256a98f6557653f50dff180b4f12211db33a4f2b57c051299ae5726f94de31c24a561e3892795a00ed1236047064fb432bb58c196a8b506f2ee3433f522720
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SSDEEP
6144:jiLdwJ5X0SGC7rrYGQJ0qkWfk0NVHlnU7:jSuJ5t2k2nnw
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (56) 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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Deletes itself
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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