General
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Target
64e81c23b85832ce7097661bad2d41082592db8afe699dc00a86661ea6934f7b
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Size
735KB
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Sample
240128-19rxgschdl
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MD5
c8e5763bf302654eb92b972145d73834
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SHA1
f240235685a39017cd8fe4b27102d4782617280b
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SHA256
64e81c23b85832ce7097661bad2d41082592db8afe699dc00a86661ea6934f7b
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SHA512
bae3d527d32ac4f85c13b61790e885f7ff4964927bad39a1327bfc551e4fce58ab6091da1b1e066393ca36168aa28f7913ea9f24645c47b26875417e7b503844
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SSDEEP
12288:nsY0BLAy9ZiikkvUp1Kp00QyfP+kytdqcD6H1ilodsKUY9JZVVEQ2djH7LjMw:R09Ayr1v81b0QC+HddAclyZUY9J1E1dM
Static task
static1
Behavioral task
behavioral1
Sample
64e81c23b85832ce7097661bad2d41082592db8afe699dc00a86661ea6934f7b.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
64e81c23b85832ce7097661bad2d41082592db8afe699dc00a86661ea6934f7b.exe
Resource
win10-20231220-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
64e81c23b85832ce7097661bad2d41082592db8afe699dc00a86661ea6934f7b
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Size
735KB
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MD5
c8e5763bf302654eb92b972145d73834
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SHA1
f240235685a39017cd8fe4b27102d4782617280b
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SHA256
64e81c23b85832ce7097661bad2d41082592db8afe699dc00a86661ea6934f7b
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SHA512
bae3d527d32ac4f85c13b61790e885f7ff4964927bad39a1327bfc551e4fce58ab6091da1b1e066393ca36168aa28f7913ea9f24645c47b26875417e7b503844
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SSDEEP
12288:nsY0BLAy9ZiikkvUp1Kp00QyfP+kytdqcD6H1ilodsKUY9JZVVEQ2djH7LjMw:R09Ayr1v81b0QC+HddAclyZUY9J1E1dM
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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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