General
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Target
7f3d7c21521c1281518be26e45a38ae339caa041fed21e139f6052c2fb90bd15
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Size
759KB
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Sample
240329-bcxn2adc3y
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MD5
dd9f4d7ce1d178bf023e7e778032d3c4
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SHA1
b68fa852c44b7f472b0a17aca512a744f07e3746
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SHA256
7f3d7c21521c1281518be26e45a38ae339caa041fed21e139f6052c2fb90bd15
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SHA512
a66dc2aeafcf4c2d96122c7e8575abd295a143273a284fad1bbf84a127b6f336105bd379a5137673d320725d83d3b21ec95f7da701486ee1c0f854187b3e0c1e
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SSDEEP
12288:SvA4oZw0pLbQwLACJLzIzw8ePOBScwM59TkMlytUoPxStCJ9wLwl1UhXkonb:SoS6/agEwK/L5iMlyt5w0MQGDnb
Malware Config
Extracted
djvu
http://sajdfue.com/test2/get.php
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extension
.looy
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offline_id
1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
8.6
5739ef2bbcd39fcd59c5746bfe4238c5
https://steamcommunity.com/profiles/76561199658817715
https://t.me/sa9ok
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profile_id_v2
5739ef2bbcd39fcd59c5746bfe4238c5
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Targets
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Target
7f3d7c21521c1281518be26e45a38ae339caa041fed21e139f6052c2fb90bd15
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Size
759KB
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MD5
dd9f4d7ce1d178bf023e7e778032d3c4
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SHA1
b68fa852c44b7f472b0a17aca512a744f07e3746
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SHA256
7f3d7c21521c1281518be26e45a38ae339caa041fed21e139f6052c2fb90bd15
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SHA512
a66dc2aeafcf4c2d96122c7e8575abd295a143273a284fad1bbf84a127b6f336105bd379a5137673d320725d83d3b21ec95f7da701486ee1c0f854187b3e0c1e
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SSDEEP
12288:SvA4oZw0pLbQwLACJLzIzw8ePOBScwM59TkMlytUoPxStCJ9wLwl1UhXkonb:SoS6/agEwK/L5iMlyt5w0MQGDnb
Score10/10-
Detect Vidar Stealer
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Detected Djvu ransomware
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Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Vidar
Vidar is an infostealer based on Arkei stealer.
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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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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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