General
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Target
setup.exe
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Size
686KB
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Sample
230320-nt1hgafc8w
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MD5
33407a727f3a9e7f75572bfe7c871860
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SHA1
9874bff718c83bd8fa3cfc9b59dd886d820f65c3
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SHA256
06368bfb7696a9a950fd2dd365ca585d4fca5b5169e1afef0f4fa3255824b7b8
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SHA512
db974ab0a4cda54b1553df36e261adbce482d9cbcc0097cb3fe612e62abb84d951fe3e971f80fb7396e54cac43967aca1c34b7b8ad6bc8e7eaa02d7792a1ae31
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SSDEEP
12288:GTj9gfMgfwkdxsYTooTP3gSjOfVuNXNMwwx0pClKmyyKPSdwugXWnPZg:jdx9rQEs0NdTwxJeKdIWnPZ
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.dazx
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offline_id
8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3
d6ef050131e7d5a1d595c51613328971
https://t.me/zaskullz
https://steamcommunity.com/profiles/76561199486572327
http://135.181.87.234:80
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profile_id_v2
d6ef050131e7d5a1d595c51613328971
Targets
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Target
setup.exe
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Size
686KB
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MD5
33407a727f3a9e7f75572bfe7c871860
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SHA1
9874bff718c83bd8fa3cfc9b59dd886d820f65c3
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SHA256
06368bfb7696a9a950fd2dd365ca585d4fca5b5169e1afef0f4fa3255824b7b8
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SHA512
db974ab0a4cda54b1553df36e261adbce482d9cbcc0097cb3fe612e62abb84d951fe3e971f80fb7396e54cac43967aca1c34b7b8ad6bc8e7eaa02d7792a1ae31
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SSDEEP
12288:GTj9gfMgfwkdxsYTooTP3gSjOfVuNXNMwwx0pClKmyyKPSdwugXWnPZg:jdx9rQEs0NdTwxJeKdIWnPZ
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Detected Djvu ransomware
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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