General
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Target
setup.exe
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Size
694KB
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Sample
230403-nt2ersed66
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MD5
79f43585713826adfdf355a915889d47
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SHA1
04234be016704b089984b1522b6cab44f53c9ffe
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SHA256
fffd0a4ba42e48bbdad90b34359c97008f0ffc788750d41b9df18e31a480d7c7
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SHA512
a4d28d45266dec8e8f7f6b36c7b70a9fcd3bd86824b00197ccc79913c89069f2b78426a167ab7ce65675224792c744a51e3c318108cfbbc1413cab2630b367a7
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SSDEEP
12288:pEbcK6f3AohNYnk3GeKLknj8QIah2cMSN7Fc1NK22dQRqrJW9vC7g:pEbh6Iohyk3SLuEad7S1Q4q9WEg
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/test2/get.php
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extension
.nifr
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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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
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Targets
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Target
setup.exe
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Size
694KB
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MD5
79f43585713826adfdf355a915889d47
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SHA1
04234be016704b089984b1522b6cab44f53c9ffe
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SHA256
fffd0a4ba42e48bbdad90b34359c97008f0ffc788750d41b9df18e31a480d7c7
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SHA512
a4d28d45266dec8e8f7f6b36c7b70a9fcd3bd86824b00197ccc79913c89069f2b78426a167ab7ce65675224792c744a51e3c318108cfbbc1413cab2630b367a7
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SSDEEP
12288:pEbcK6f3AohNYnk3GeKLknj8QIah2cMSN7Fc1NK22dQRqrJW9vC7g:pEbh6Iohyk3SLuEad7S1Q4q9WEg
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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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