General
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Target
6f1fc7326fb0d10f8b1eac5a2abdfeeae88f45351cdd78d60b6c16394098be0f
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Size
729KB
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Sample
221010-27wnbsdgcn
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MD5
909385b5bb84a828363508e2f6aa0041
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SHA1
67976f5d58cf376791aa44e8386e88f5c79139f5
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SHA256
6f1fc7326fb0d10f8b1eac5a2abdfeeae88f45351cdd78d60b6c16394098be0f
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SHA512
74a00a139e0b92f278a71eefc48a5f55628f7dad1c1c33620f85461fb26dfa189ffde3d1dba0fced64e66fda5c9b3e285147f77ebc7eddd944d89c66b8e9ce2c
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SSDEEP
12288:G1tanpuALff/gmCvJohwqf6zOY5lInknmFYb2sWiZOA2GQV5CY/N6749Yy/KYLBp:GnHaAm+OhRftYWykyZOA2GQLJl6sbC8X
Static task
static1
Behavioral task
behavioral1
Sample
6f1fc7326fb0d10f8b1eac5a2abdfeeae88f45351cdd78d60b6c16394098be0f.exe
Resource
win10-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.towz
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offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
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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
6f1fc7326fb0d10f8b1eac5a2abdfeeae88f45351cdd78d60b6c16394098be0f
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Size
729KB
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MD5
909385b5bb84a828363508e2f6aa0041
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SHA1
67976f5d58cf376791aa44e8386e88f5c79139f5
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SHA256
6f1fc7326fb0d10f8b1eac5a2abdfeeae88f45351cdd78d60b6c16394098be0f
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SHA512
74a00a139e0b92f278a71eefc48a5f55628f7dad1c1c33620f85461fb26dfa189ffde3d1dba0fced64e66fda5c9b3e285147f77ebc7eddd944d89c66b8e9ce2c
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SSDEEP
12288:G1tanpuALff/gmCvJohwqf6zOY5lInknmFYb2sWiZOA2GQV5CY/N6749Yy/KYLBp:GnHaAm+OhRftYWykyZOA2GQLJl6sbC8X
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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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