General
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Target
afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220
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Size
796KB
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Sample
230514-mejezabf42
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MD5
71a1b287303f98b39932fad2681e4614
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SHA1
905f4e105101b80fb8df7bbcba968ec04aa06200
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SHA256
afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220
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SHA512
27a321b16ae2aacf526bb3c39606f9ec80930b7205cea400934928e29bc1d06fbbe816a9ddc33eceefd8fb54a3661ea6bf7c3bbb69778e2092f9e4033068e88b
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SSDEEP
24576:+QC11X6S18V5N8NKYARxJF3SpNREhS7BeGIMz:+DCrWif3SjuhS7B9bz
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.gash
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offline_id
gdTA3a9eBPJZlAHc7UhZKxuA2PF57q3j1xsfAkt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.8
ef32d425b907146eeb9090dbc9455ab1
https://steamcommunity.com/profiles/76561198272578552
https://t.me/libpcre
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profile_id_v2
ef32d425b907146eeb9090dbc9455ab1
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user_agent
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7
Targets
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Target
afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220
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Size
796KB
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MD5
71a1b287303f98b39932fad2681e4614
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SHA1
905f4e105101b80fb8df7bbcba968ec04aa06200
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SHA256
afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220
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SHA512
27a321b16ae2aacf526bb3c39606f9ec80930b7205cea400934928e29bc1d06fbbe816a9ddc33eceefd8fb54a3661ea6bf7c3bbb69778e2092f9e4033068e88b
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SSDEEP
24576:+QC11X6S18V5N8NKYARxJF3SpNREhS7BeGIMz:+DCrWif3SjuhS7B9bz
Score10/10-
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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Loads dropped DLL
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Modifies file permissions
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses 2FA software files, possible credential harvesting
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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