General
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Target
e15838d109b4f5722792b79fd04d25c0362d21d3bcac91b25be543a2c8665002
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Size
785KB
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Sample
240328-mx45dsag4x
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MD5
f6c55d3a17e55c0ae7e26f7b350cef55
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SHA1
f9746c8456a947c726db0c7cb8099c4dcbb7e70d
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SHA256
e15838d109b4f5722792b79fd04d25c0362d21d3bcac91b25be543a2c8665002
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SHA512
bad401947516c98d5866a34b3fce6c890787a23fcc62dd10ca365b7d89c19b6e85a9d5765c16e1f42202190ba36403711aecd4f24f60ef6e8e17cd3df5f6f041
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SSDEEP
24576:DHptzgsAQQPN1whgzZz85MI4IdunVVx+:DJtzgoeFDfL
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
e15838d109b4f5722792b79fd04d25c0362d21d3bcac91b25be543a2c8665002
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Size
785KB
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MD5
f6c55d3a17e55c0ae7e26f7b350cef55
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SHA1
f9746c8456a947c726db0c7cb8099c4dcbb7e70d
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SHA256
e15838d109b4f5722792b79fd04d25c0362d21d3bcac91b25be543a2c8665002
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SHA512
bad401947516c98d5866a34b3fce6c890787a23fcc62dd10ca365b7d89c19b6e85a9d5765c16e1f42202190ba36403711aecd4f24f60ef6e8e17cd3df5f6f041
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SSDEEP
24576:DHptzgsAQQPN1whgzZz85MI4IdunVVx+:DJtzgoeFDfL
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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