General
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Target
a007c1c7047f20826c63fa33799785c3853bf2c5bf525c5849609cbf5c6f7740
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Size
668KB
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Sample
221019-1r4hkaabe8
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MD5
bc72880e12b3405a9915ee467bd80a77
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SHA1
7627eddbaeaebbe812954295daf6b1338b759dde
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SHA256
1561a6914fed840b6d70ec6848cb84fab08db0d6fc0ab6fa51724657222b6e5d
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SHA512
95a0288ba6211eb10e29fe5517f09f28106957bdd6238926d971f5c3559240e2eea8287553af1ed3a28ed61726db2f8aaa97836a57e21e7b82e32f8de64ce926
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SSDEEP
12288:TSZZOlgLvVJsD33BOysH+hbTxpFHKjdIPWShWp/OGak/L/yC2k8a:TSZvpKDBO6Z3AJIwp/ZbL2a
Static task
static1
Behavioral task
behavioral1
Sample
a007c1c7047f20826c63fa33799785c3853bf2c5bf525c5849609cbf5c6f7740.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a007c1c7047f20826c63fa33799785c3853bf2c5bf525c5849609cbf5c6f7740.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
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extension
.tuis
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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
a007c1c7047f20826c63fa33799785c3853bf2c5bf525c5849609cbf5c6f7740
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Size
748KB
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MD5
d4c29f3c6d519e3849cb7275c89ef449
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SHA1
2f869dc66f2f10fb86486604afb4e5adce5b2e76
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SHA256
a007c1c7047f20826c63fa33799785c3853bf2c5bf525c5849609cbf5c6f7740
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SHA512
61b8bf596a7c9e8238b6dd806ed9e017ec213b06eb6fe3e5e285842673a3767da283e4fda02d5176400d822eda4f5fd77bc752d83f25e7751a43c7c9f02b2824
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SSDEEP
12288:jwNZjn8s/WVbsD3nBOaQHKhpTxpFpK7dUPWSDc//OsakBL/y12:jwf/kIbBOMP32hU8//fb62
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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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