General
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Target
9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a
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Size
719KB
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Sample
240402-ree5rsce6x
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MD5
3c957e6d08dab67ea7401102d7cae49f
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SHA1
af226aa8273d5c4235b8a7af0835f655d2e46c3c
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SHA256
9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a
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SHA512
c67aa1a1cab23f1362262d575cb4f25a54d7f95ea26db1c5058e34ca9f43c2890eabb0f5f4b105c837a2d5d9b1686a7700f09ddf9733b7d9c11611ec2a1ec955
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SSDEEP
12288:i9yPCDJ318q0+zhRrM3RvgeZrwh9iDgSoeT4M7Btv3QV+clmPk18L:qy28Uh9IIyoeT4M7BhAV+VWw
Malware Config
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.uajs
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offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
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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
https://steamcommunity.com/profiles/76561199658817715
https://t.me/sa9ok
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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
9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a
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Size
719KB
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MD5
3c957e6d08dab67ea7401102d7cae49f
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SHA1
af226aa8273d5c4235b8a7af0835f655d2e46c3c
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SHA256
9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a
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SHA512
c67aa1a1cab23f1362262d575cb4f25a54d7f95ea26db1c5058e34ca9f43c2890eabb0f5f4b105c837a2d5d9b1686a7700f09ddf9733b7d9c11611ec2a1ec955
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SSDEEP
12288:i9yPCDJ318q0+zhRrM3RvgeZrwh9iDgSoeT4M7Btv3QV+clmPk18L:qy28Uh9IIyoeT4M7BhAV+VWw
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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