General
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Target
c6f205bb87d178aab8de2eaf08a0c983ed8215879f0c80b76af6bff6465ab28e
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Size
729KB
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Sample
221011-b3sg1ahffr
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MD5
3dec91d188e1816589c35c915ab43bd8
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SHA1
4cbbdf73f1e8037c50b04d40a0aa3d218fde3c41
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SHA256
c6f205bb87d178aab8de2eaf08a0c983ed8215879f0c80b76af6bff6465ab28e
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SHA512
c7a21013c84d151b154c9fc5f872185dd8c98f8d9cb8c0be66c47e5b03a0a984178895d052937f1306b3060021c714c4e8ff80acfc808c3b1864dcf449165f62
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SSDEEP
12288:jB2HLAUzOWDDKSEKeqUBZo74Jzj0zd3ue2XZJKmikmcXu8ReqmB0Z36b:jQ19Ktfzjgdee2XyxkmuReqmB0Z36b
Static task
static1
Behavioral task
behavioral1
Sample
c6f205bb87d178aab8de2eaf08a0c983ed8215879f0c80b76af6bff6465ab28e.exe
Resource
win10v2004-20220812-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
c6f205bb87d178aab8de2eaf08a0c983ed8215879f0c80b76af6bff6465ab28e
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Size
729KB
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MD5
3dec91d188e1816589c35c915ab43bd8
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SHA1
4cbbdf73f1e8037c50b04d40a0aa3d218fde3c41
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SHA256
c6f205bb87d178aab8de2eaf08a0c983ed8215879f0c80b76af6bff6465ab28e
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SHA512
c7a21013c84d151b154c9fc5f872185dd8c98f8d9cb8c0be66c47e5b03a0a984178895d052937f1306b3060021c714c4e8ff80acfc808c3b1864dcf449165f62
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SSDEEP
12288:jB2HLAUzOWDDKSEKeqUBZo74Jzj0zd3ue2XZJKmikmcXu8ReqmB0Z36b:jQ19Ktfzjgdee2XyxkmuReqmB0Z36b
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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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