General
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Target
3b73a7836ad74f3935bbf484f0e52ad6.exe
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Size
188KB
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Sample
221125-je8s3seg8s
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MD5
3b73a7836ad74f3935bbf484f0e52ad6
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SHA1
50ca09f7540ffb4c965b377d3d819d7824a8c58b
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SHA256
031b4e568cad085968b87c4545bd846ba9c66a13d3b8c12222aec86dde94cb46
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SHA512
ea38d653cdce8cb58e0fa22acadf1e6a78b35d875088d0e1a9afd219bb3b5715b3508c6274693a87ec6af03e3bd223b9d427be11df3c3137d665276cdc9d7f05
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SSDEEP
3072:zsYrN/lCjWikwgL3J2FtEM5G2s96jwbBJBAUIJFWWNGt3fN:Fr7jL3JOg2s9OYJBwFJ4tP
Static task
static1
Behavioral task
behavioral1
Sample
3b73a7836ad74f3935bbf484f0e52ad6.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
3b73a7836ad74f3935bbf484f0e52ad6.exe
Resource
win10v2004-20221111-en
Malware Config
Extracted
djvu
http://fresherlights.com/lancer/get.php
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extension
.tcbu
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offline_id
JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1
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payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
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ransomnote
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Extracted
amadey
3.50
193.56.146.194/h49vlBP/index.php
Targets
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Target
3b73a7836ad74f3935bbf484f0e52ad6.exe
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Size
188KB
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MD5
3b73a7836ad74f3935bbf484f0e52ad6
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SHA1
50ca09f7540ffb4c965b377d3d819d7824a8c58b
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SHA256
031b4e568cad085968b87c4545bd846ba9c66a13d3b8c12222aec86dde94cb46
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SHA512
ea38d653cdce8cb58e0fa22acadf1e6a78b35d875088d0e1a9afd219bb3b5715b3508c6274693a87ec6af03e3bd223b9d427be11df3c3137d665276cdc9d7f05
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SSDEEP
3072:zsYrN/lCjWikwgL3J2FtEM5G2s96jwbBJBAUIJFWWNGt3fN:Fr7jL3JOg2s9OYJBwFJ4tP
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Detected Djvu ransomware
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Detects Smokeloader packer
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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 Microsoft Outlook profiles
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Adds Run key to start application
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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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