General
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Target
cf711afc5eca3498429bb1422b41d7a5.exe
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Size
748KB
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Sample
221019-zkafgagcdk
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MD5
cf711afc5eca3498429bb1422b41d7a5
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SHA1
364304eb925d2702c123736c16ab07e9d10dcf6d
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SHA256
8049e8a7a6566a6b2976ecfb124137de661d6583ad4809e8a495aee2f37b3d0d
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SHA512
6d11601e127cd33e2b12d2d617bf9eb82c9b91f3f87063f04b70dcc623f5483eb225ce92cb90715a0bcff1fae366920f42302170179ca089160ecbbca6573b54
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SSDEEP
12288:OgKZh6AG/6/4MTPXNdJvHspTinvDjICS0uYyT+IEW6v/siBq7dkeqto:OXG6AMTP3RspenvDjzS0uYyT+g6XLBqN
Static task
static1
Behavioral task
behavioral1
Sample
cf711afc5eca3498429bb1422b41d7a5.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
cf711afc5eca3498429bb1422b41d7a5.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.tury
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offline_id
Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
55.1
517
https://t.me/tg_privatetalk
https://nerdculture.de/@yixehi33
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profile_id
517
Targets
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Target
cf711afc5eca3498429bb1422b41d7a5.exe
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Size
748KB
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MD5
cf711afc5eca3498429bb1422b41d7a5
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SHA1
364304eb925d2702c123736c16ab07e9d10dcf6d
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SHA256
8049e8a7a6566a6b2976ecfb124137de661d6583ad4809e8a495aee2f37b3d0d
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SHA512
6d11601e127cd33e2b12d2d617bf9eb82c9b91f3f87063f04b70dcc623f5483eb225ce92cb90715a0bcff1fae366920f42302170179ca089160ecbbca6573b54
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SSDEEP
12288:OgKZh6AG/6/4MTPXNdJvHspTinvDjICS0uYyT+IEW6v/siBq7dkeqto:OXG6AMTP3RspenvDjzS0uYyT+g6XLBqN
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Modifies file permissions
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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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