General
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Target
73dbcb05d7ca048213fdb1c083b084f7a87e208ee6dfd9634840c5cedbfc5027
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Size
700KB
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Sample
240201-fh4rrabfe8
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MD5
82b95c134ff0481c15adec3f77e413f3
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SHA1
bf3f50f5a88f9f3efb40a1dce441824a24c5df1c
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SHA256
73dbcb05d7ca048213fdb1c083b084f7a87e208ee6dfd9634840c5cedbfc5027
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SHA512
9bdc2c364fea0c28c5f3a8862e33119c5ebe3fb3f7b21037d148abd7d15f5e1fe74550cbad99e38b6c311bfe4e0f39430da124ea0f1483f317235ecf3f044921
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SSDEEP
12288:kT9K0UmPjoKllWmrr28ueznY3efXlmEEHEuKRVbNGvrjlS2er0LZll/:wZ7ozmrrfPzYwmfHIVbNGHXeol9
Static task
static1
Behavioral task
behavioral1
Sample
73dbcb05d7ca048213fdb1c083b084f7a87e208ee6dfd9634840c5cedbfc5027.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
73dbcb05d7ca048213fdb1c083b084f7a87e208ee6dfd9634840c5cedbfc5027.exe
Resource
win10-20231215-en
Malware Config
Extracted
djvu
http://habrafa.com/test1/get.php
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extension
.cdcc
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offline_id
LBxKKiegnAy53rpqH3Pj2j46vwldiEt9kqHSuMt1
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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
7.6
1b9d7ec5a25ab9d78c31777a0016a097
https://t.me/tvrugrats
https://steamcommunity.com/profiles/76561199627279110
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profile_id_v2
1b9d7ec5a25ab9d78c31777a0016a097
Targets
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Target
73dbcb05d7ca048213fdb1c083b084f7a87e208ee6dfd9634840c5cedbfc5027
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Size
700KB
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MD5
82b95c134ff0481c15adec3f77e413f3
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SHA1
bf3f50f5a88f9f3efb40a1dce441824a24c5df1c
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SHA256
73dbcb05d7ca048213fdb1c083b084f7a87e208ee6dfd9634840c5cedbfc5027
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SHA512
9bdc2c364fea0c28c5f3a8862e33119c5ebe3fb3f7b21037d148abd7d15f5e1fe74550cbad99e38b6c311bfe4e0f39430da124ea0f1483f317235ecf3f044921
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SSDEEP
12288:kT9K0UmPjoKllWmrr28ueznY3efXlmEEHEuKRVbNGvrjlS2er0LZll/:wZ7ozmrrfPzYwmfHIVbNGHXeol9
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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 Matrix ATT&CK v13
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