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General
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Target
file.exe
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Size
777KB
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Sample
220908-fv8w8sagfq
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MD5
b3e457081acad76912cbdf15e3fb1dc7
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SHA1
f22cc7127f02bc89995197612cf54f8b58b1c469
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SHA256
6d495ef15b5109636e685112122dfe1c5d854fbcf65a698fcb23a838c1c12200
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SHA512
3105046d5901efc114711346509f04fec06ed56c4d4f08496d8be2c8dfd828966aa54bb23f315c94db1bf2d9c3cda4fe1c7b0693315fc371a21c0a3488d8f112
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SSDEEP
12288:NTQZCuhNEizhIDopI+RuUbLgw5Z7bhYzjdSB9o3/iqSDXHCw8HoUQF09jtTV:tWjEi2DMuUbLRBh8e9oqpn8XX9hTV
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://acacaca.org/test3/get.php
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extension
.mmvb
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offline_id
yd6oYv6aBN90yFzTWdZ34sXSXtXiauzOLXZyWht1
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payload_url
http://rgyui.top/dl/build2.exe
http://acacaca.org/files/1/build3.exe
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ransomnote
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Targets
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Target
file.exe
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Size
777KB
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MD5
b3e457081acad76912cbdf15e3fb1dc7
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SHA1
f22cc7127f02bc89995197612cf54f8b58b1c469
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SHA256
6d495ef15b5109636e685112122dfe1c5d854fbcf65a698fcb23a838c1c12200
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SHA512
3105046d5901efc114711346509f04fec06ed56c4d4f08496d8be2c8dfd828966aa54bb23f315c94db1bf2d9c3cda4fe1c7b0693315fc371a21c0a3488d8f112
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SSDEEP
12288:NTQZCuhNEizhIDopI+RuUbLgw5Z7bhYzjdSB9o3/iqSDXHCw8HoUQF09jtTV:tWjEi2DMuUbLRBh8e9oqpn8XX9hTV
Score10/10-
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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