General
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Target
file.exe
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Size
785KB
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Sample
231123-ry5jrsac92
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MD5
4ed704febaafefe33af1d3b4b994ec46
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SHA1
488b034dbdda0197f0fa95ebfbb3eb9ff9652ecb
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SHA256
7a73364757e45002142e0cd2ae8a5541caf371027239afadae565e852f0bb026
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SHA512
120c180bfcd2072613bf6bfb285468b6e7c887fab3ad81b7fd5b2a98303cd4c7186cee931f22861a2e81f854622a93a4e64ed69f15dfaf4a8db8f781929b4f82
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SSDEEP
12288:MNGs/DUwn7d56lXCxOI5BzH4aBvBCwLuSdP2mkI/8fRKg5cDrDI0:WJnx2XsBjX4wLv3khQgaDrDI0
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20231023-en
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.gyza
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offline_id
nN1rRlTxKTPo66pmJEAHwufZ2Dhz4MsNxIlOk6t1
- payload_url
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ransomnote
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Targets
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Target
file.exe
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Size
785KB
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MD5
4ed704febaafefe33af1d3b4b994ec46
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SHA1
488b034dbdda0197f0fa95ebfbb3eb9ff9652ecb
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SHA256
7a73364757e45002142e0cd2ae8a5541caf371027239afadae565e852f0bb026
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SHA512
120c180bfcd2072613bf6bfb285468b6e7c887fab3ad81b7fd5b2a98303cd4c7186cee931f22861a2e81f854622a93a4e64ed69f15dfaf4a8db8f781929b4f82
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SSDEEP
12288:MNGs/DUwn7d56lXCxOI5BzH4aBvBCwLuSdP2mkI/8fRKg5cDrDI0:WJnx2XsBjX4wLv3khQgaDrDI0
Score10/10-
Detected Djvu ransomware
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Modifies file permissions
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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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