General
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Target
8ed35a72bae7ecb5af0159c9e3764dc46d65b49dae94dcceda92517e5a1edac4
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Size
795KB
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Sample
230607-yl2exafg71
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MD5
104359ff6b03acfcf2554451bfba56b1
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SHA1
cbed43299cb15c646a54f77f125e2171124a9615
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SHA256
8ed35a72bae7ecb5af0159c9e3764dc46d65b49dae94dcceda92517e5a1edac4
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SHA512
06be28401d1a2bcc72aa3c5aaab7ffeb45302e8db6ca902c880270a4d84d4d97b00db28e17d3686ea81587151e88424d8a4c9f0461fc46725d70dfdcb49ce437
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SSDEEP
12288:WKsWDrZBVQLgXo+YFqJSve6Ntj175bDmy5TxvwVipuxEgQ3dVnd4m1373eU:WKpDrZQLgGFqJge+j9sATrpZgQt5j3
Static task
static1
Behavioral task
behavioral1
Sample
8ed35a72bae7ecb5af0159c9e3764dc46d65b49dae94dcceda92517e5a1edac4.exe
Resource
win10-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.nerz
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offline_id
0vTA6MA1m5nzrdffOCJC7YmAa4Lp6YNN8lOJ4mt1
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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
4.2
a81bcf59d85e6e13257840e65b9d1da8
https://steamcommunity.com/profiles/76561199511129510
https://t.me/rechnungsbetrag
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profile_id_v2
a81bcf59d85e6e13257840e65b9d1da8
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user_agent
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.38 Safari/537.36 Brave/75
Targets
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Target
8ed35a72bae7ecb5af0159c9e3764dc46d65b49dae94dcceda92517e5a1edac4
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Size
795KB
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MD5
104359ff6b03acfcf2554451bfba56b1
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SHA1
cbed43299cb15c646a54f77f125e2171124a9615
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SHA256
8ed35a72bae7ecb5af0159c9e3764dc46d65b49dae94dcceda92517e5a1edac4
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SHA512
06be28401d1a2bcc72aa3c5aaab7ffeb45302e8db6ca902c880270a4d84d4d97b00db28e17d3686ea81587151e88424d8a4c9f0461fc46725d70dfdcb49ce437
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SSDEEP
12288:WKsWDrZBVQLgXo+YFqJSve6Ntj175bDmy5TxvwVipuxEgQ3dVnd4m1373eU:WKpDrZQLgGFqJge+j9sATrpZgQt5j3
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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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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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