General
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Target
7A50.exe.virus
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Size
815KB
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Sample
221011-e6cgqseee6
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MD5
1f0aacb506ee16071fd5d0fdee1db2a3
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SHA1
a94db3eb4115a70f52049644874cdb78e6030868
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SHA256
47d7b98eef7bbcd2b53f48c0001a1845c397b99857474cc554217a1eff9761e6
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SHA512
7d646cd067222d275d6406eb61ea2fcb716583fc61832fe22884e51859c15a43ea126f9f5059e2a1c7bfe19416d551915f29d3605c7a36f9e726451047fd4cbe
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SSDEEP
24576:ykf0yhGBbElx68mYqdWjpvR27VgJxYAix:yhyiCx68ew8Exh
Static task
static1
Behavioral task
behavioral1
Sample
7A50.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
7A50.exe
Resource
win10v2004-20220901-en
Malware Config
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.ofww
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offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
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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
54.9
517
https://t.me/larsenup
https://ioc.exchange/@zebra54
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profile_id
517
Targets
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Target
7A50.exe.virus
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Size
815KB
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MD5
1f0aacb506ee16071fd5d0fdee1db2a3
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SHA1
a94db3eb4115a70f52049644874cdb78e6030868
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SHA256
47d7b98eef7bbcd2b53f48c0001a1845c397b99857474cc554217a1eff9761e6
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SHA512
7d646cd067222d275d6406eb61ea2fcb716583fc61832fe22884e51859c15a43ea126f9f5059e2a1c7bfe19416d551915f29d3605c7a36f9e726451047fd4cbe
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SSDEEP
24576:ykf0yhGBbElx68mYqdWjpvR27VgJxYAix:yhyiCx68ew8Exh
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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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