General
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Target
4462c977dcf35daba670ef1d2d0d1ee74d6bbbc5c02c35d3e41fcb89d7293251
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Size
772KB
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Sample
230618-v4tagahg6v
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MD5
889443b12c755272f3c052e73e251b93
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SHA1
600743108e3ad2e938377a21ca23cd725525e9eb
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SHA256
4462c977dcf35daba670ef1d2d0d1ee74d6bbbc5c02c35d3e41fcb89d7293251
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SHA512
88933935088dfdedc7b9aebd0e3c6a90a5924ebc41d633c51cc286d0961a0737f8bf33e45080d8bc74658375c5b9e403b90373c7f39cc34cd82643bfa7d4a86c
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SSDEEP
12288:m1leH45msc+4+zLocuySugT+Kg+2N0edOQ/cNZ2I65wFKGPY:igYDh4+zLPSugT/fPrQUdcqY
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.ahui
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offline_id
vPWUuYIO6Lzy2cGt8zL7FERKTf4QMBPjn7F005t1
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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
4.3
a129a8292a021d62796bfced1018aa1f
https://steamcommunity.com/profiles/76561199514261168
https://t.me/kamaprimo
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profile_id_v2
a129a8292a021d62796bfced1018aa1f
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user_agent
Mozilla/5.0 (Linux; U; Tizen 2.0; en-us) AppleWebKit/537.1 (KHTML, like Gecko) Mobile TizenBrowser/2.0
Targets
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Target
4462c977dcf35daba670ef1d2d0d1ee74d6bbbc5c02c35d3e41fcb89d7293251
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Size
772KB
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MD5
889443b12c755272f3c052e73e251b93
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SHA1
600743108e3ad2e938377a21ca23cd725525e9eb
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SHA256
4462c977dcf35daba670ef1d2d0d1ee74d6bbbc5c02c35d3e41fcb89d7293251
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SHA512
88933935088dfdedc7b9aebd0e3c6a90a5924ebc41d633c51cc286d0961a0737f8bf33e45080d8bc74658375c5b9e403b90373c7f39cc34cd82643bfa7d4a86c
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SSDEEP
12288:m1leH45msc+4+zLocuySugT+Kg+2N0edOQ/cNZ2I65wFKGPY:igYDh4+zLPSugT/fPrQUdcqY
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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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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