General
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Target
1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4
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Size
785KB
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Sample
240328-myz7tsag6t
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MD5
b1f1f27dc412d65653c97dde5c5f4937
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SHA1
262b85a349a20c9b97a4be19af9b9b96ae7caf5d
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SHA256
1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4
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SHA512
03cf8242f333a04c91e9d5c8dbf15b8500e069dc96b4d948ad80f90aa413175717ecf2b92056daa496e6758b44341b3819609b13b64340d319842ed76382bd8b
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SSDEEP
12288:wDQkRG6P9ZCD9ALF6OAtNPZgvAjcV0hfcmJAan88Aj7H5nu1RVKJ9tDkztBi1:wp/hLF6O6NR4Ajc3Xr8Y7ZnKDK6A1
Malware Config
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.vook
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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
1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4
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Size
785KB
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MD5
b1f1f27dc412d65653c97dde5c5f4937
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SHA1
262b85a349a20c9b97a4be19af9b9b96ae7caf5d
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SHA256
1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4
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SHA512
03cf8242f333a04c91e9d5c8dbf15b8500e069dc96b4d948ad80f90aa413175717ecf2b92056daa496e6758b44341b3819609b13b64340d319842ed76382bd8b
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SSDEEP
12288:wDQkRG6P9ZCD9ALF6OAtNPZgvAjcV0hfcmJAan88Aj7H5nu1RVKJ9tDkztBi1:wp/hLF6O6NR4Ajc3Xr8Y7ZnKDK6A1
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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