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General
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Target
6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744
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Size
723KB
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Sample
231011-wctycscf7s
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MD5
8846a2226f2a09cc1aa53dc160896323
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SHA1
f4dcf8c8b14454d212e4618c1c34a57e2f86e88a
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SHA256
6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744
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SHA512
f0d15232a9662986f9966a245ebe25746b02568587c00136911d8d7aab9d6819d498f154316e9bc9a08bb7a2c69d87a652d2a8c1f8dc30c46a88cb9a90de0981
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SSDEEP
12288:h+dcKHCFOdfhiv3uHLxq+8pjWRoRLqztBKELuWKhb23dKEn/1opYJGix/X0:h+uTz33+8R8/pPKhb4dLopYJGEX0
Static task
static1
Behavioral task
behavioral1
Sample
6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.azhi
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offline_id
GQ9DjFmWFDqpsyzsOnaxE1Xr4MPL1dG4vPfPDNt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
6
d37c48c18c73cc0e155c7e1dfde06db9
https://steamcommunity.com/profiles/76561199560322242
https://t.me/cahalgo
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profile_id_v2
d37c48c18c73cc0e155c7e1dfde06db9
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user_agent
Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0 uacq
Targets
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Target
6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744
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Size
723KB
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MD5
8846a2226f2a09cc1aa53dc160896323
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SHA1
f4dcf8c8b14454d212e4618c1c34a57e2f86e88a
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SHA256
6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744
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SHA512
f0d15232a9662986f9966a245ebe25746b02568587c00136911d8d7aab9d6819d498f154316e9bc9a08bb7a2c69d87a652d2a8c1f8dc30c46a88cb9a90de0981
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SSDEEP
12288:h+dcKHCFOdfhiv3uHLxq+8pjWRoRLqztBKELuWKhb23dKEn/1opYJGix/X0:h+uTz33+8R8/pPKhb4dLopYJGEX0
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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Modifies file permissions
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1