General
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Target
bd3399d4e84992f425f2b4b585bb0a5bbb28cc97e48cd6e34c86e0587c916776
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Size
733KB
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Sample
240128-2b6tesbec8
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MD5
0ee1d50ab6ebc3c56d97da72d2095490
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SHA1
cb6fbfd948063b3acd7f321ee1a2d8ccc98f4321
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SHA256
bd3399d4e84992f425f2b4b585bb0a5bbb28cc97e48cd6e34c86e0587c916776
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SHA512
c74bf82227be6979c44d6f96a06c5847bbd964b4e71641277f81892df1db739b35b57a0c2e8ed5ee3c403b714232cfdd0e44e2f05bf9ce977329f8677e821a40
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SSDEEP
12288:q945gEh9lm0BfAcQfUrepwF0NwArUl905s7eZvELVin:dpv5f/WNo0NVrUDAs7KvEpin
Static task
static1
Behavioral task
behavioral1
Sample
bd3399d4e84992f425f2b4b585bb0a5bbb28cc97e48cd6e34c86e0587c916776.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
bd3399d4e84992f425f2b4b585bb0a5bbb28cc97e48cd6e34c86e0587c916776.exe
Resource
win10-20231215-en
Malware Config
Extracted
djvu
http://habrafa.com/test1/get.php
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extension
.cdpo
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offline_id
Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1
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payload_url
http://brusuax.com/dl/build2.exe
http://habrafa.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
7.5
e7447dc405edc4690f5920bdb056364f
https://t.me/bogotatg
https://steamcommunity.com/profiles/76561199621829149
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profile_id_v2
e7447dc405edc4690f5920bdb056364f
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_3) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7
Targets
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Target
bd3399d4e84992f425f2b4b585bb0a5bbb28cc97e48cd6e34c86e0587c916776
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Size
733KB
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MD5
0ee1d50ab6ebc3c56d97da72d2095490
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SHA1
cb6fbfd948063b3acd7f321ee1a2d8ccc98f4321
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SHA256
bd3399d4e84992f425f2b4b585bb0a5bbb28cc97e48cd6e34c86e0587c916776
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SHA512
c74bf82227be6979c44d6f96a06c5847bbd964b4e71641277f81892df1db739b35b57a0c2e8ed5ee3c403b714232cfdd0e44e2f05bf9ce977329f8677e821a40
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SSDEEP
12288:q945gEh9lm0BfAcQfUrepwF0NwArUl905s7eZvELVin:dpv5f/WNo0NVrUDAs7KvEpin
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Detect Vidar Stealer
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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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