General
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Target
16166b986cd8f0c86be967a2520ea7a6e25a9792d73a5516ad6de37702e87c34
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Size
744KB
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Sample
240128-17w4esbce9
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MD5
a29a054b916c7fb3a6b10e18c54cb9ec
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SHA1
bf756199ed02aa04bbfacad49ea51333f6a3a999
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SHA256
16166b986cd8f0c86be967a2520ea7a6e25a9792d73a5516ad6de37702e87c34
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SHA512
78b3d4425acc21dbf40e9df6015db6bb9a3729506845e6be3e025027fc6142469b3b353a543c85730ccddb136ef93e85fc9209dc03af3ac667b0006c49c6b43d
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SSDEEP
12288:tBWA0WS1K08QHydsNMhhgQnKT310AmvToMJyng+q4hvhyHOaeVoajKZTlReJEKfc:c8XQSdI25KT1+LQnVqUAHOaeVQlgXf
Static task
static1
Behavioral task
behavioral1
Sample
16166b986cd8f0c86be967a2520ea7a6e25a9792d73a5516ad6de37702e87c34.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
16166b986cd8f0c86be967a2520ea7a6e25a9792d73a5516ad6de37702e87c34.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
16166b986cd8f0c86be967a2520ea7a6e25a9792d73a5516ad6de37702e87c34
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Size
744KB
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MD5
a29a054b916c7fb3a6b10e18c54cb9ec
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SHA1
bf756199ed02aa04bbfacad49ea51333f6a3a999
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SHA256
16166b986cd8f0c86be967a2520ea7a6e25a9792d73a5516ad6de37702e87c34
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SHA512
78b3d4425acc21dbf40e9df6015db6bb9a3729506845e6be3e025027fc6142469b3b353a543c85730ccddb136ef93e85fc9209dc03af3ac667b0006c49c6b43d
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SSDEEP
12288:tBWA0WS1K08QHydsNMhhgQnKT310AmvToMJyng+q4hvhyHOaeVoajKZTlReJEKfc:c8XQSdI25KT1+LQnVqUAHOaeVQlgXf
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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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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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