General
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Target
2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d
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Size
729KB
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Sample
221011-jw15kaddbn
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MD5
ad499a24974aff27e4204574bca7b05f
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SHA1
2b8246aed7668f94d61ef52a52697981db97ad5f
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SHA256
2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d
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SHA512
bd10a3499bca8cf71a2f316d4c0f8b84f0a19a4b6f8d58b4b6d94aa9025ef1fda96ffcd4afb4b63fb1fb0b12182e53834bdbc7cd9b2ede5d07fcaddc3286c66e
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SSDEEP
12288:KNOSzsCEs2tw3K4NZmyt7q4U8V5PyJQNDFjxp0X+aZVaySlRhmk1Zcg/hGvsV:KN0CEXw3K4jmq7nZLhFVp0O6VlSlKQ
Static task
static1
Behavioral task
behavioral1
Sample
2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
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extension
.tohj
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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
2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d
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Size
729KB
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MD5
ad499a24974aff27e4204574bca7b05f
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SHA1
2b8246aed7668f94d61ef52a52697981db97ad5f
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SHA256
2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d
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SHA512
bd10a3499bca8cf71a2f316d4c0f8b84f0a19a4b6f8d58b4b6d94aa9025ef1fda96ffcd4afb4b63fb1fb0b12182e53834bdbc7cd9b2ede5d07fcaddc3286c66e
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SSDEEP
12288:KNOSzsCEs2tw3K4NZmyt7q4U8V5PyJQNDFjxp0X+aZVaySlRhmk1Zcg/hGvsV:KN0CEXw3K4jmq7nZLhFVp0O6VlSlKQ
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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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