General
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Target
file.exe
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Size
824KB
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Sample
230610-axcc6aee8x
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MD5
f44da0dfe7f4581e5c415b0a17d1e973
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SHA1
db00da4f1ca30517c43030ce8e5ccc64ea2c9d8f
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SHA256
d35d748aebd7c8112ee9d4d7cc38f430bca5b397afec832d51f3e086b828e845
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SHA512
d624ac9340759c87d8d9de672f5a8f2ae20c8cc88ac045929586303ecb35ee321d62a59bbbec051eda19065d712c0efc049e949f7130538b3c3afab856362a7c
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SSDEEP
24576:kwHsU2QfJr5SOlFujlI99FwPhp6RBvtSGF:kwHhJfJNSOHuLPS7
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.neon
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offline_id
0vTA6MA1m5nzrdffOCJC7YmAa4Lp6YNN8lOJ4mt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
4.2
a81bcf59d85e6e13257840e65b9d1da8
https://steamcommunity.com/profiles/76561199511129510
https://t.me/rechnungsbetrag
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profile_id_v2
a81bcf59d85e6e13257840e65b9d1da8
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user_agent
Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.38 Safari/537.36 Brave/75
Targets
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Target
file.exe
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Size
824KB
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MD5
f44da0dfe7f4581e5c415b0a17d1e973
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SHA1
db00da4f1ca30517c43030ce8e5ccc64ea2c9d8f
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SHA256
d35d748aebd7c8112ee9d4d7cc38f430bca5b397afec832d51f3e086b828e845
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SHA512
d624ac9340759c87d8d9de672f5a8f2ae20c8cc88ac045929586303ecb35ee321d62a59bbbec051eda19065d712c0efc049e949f7130538b3c3afab856362a7c
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SSDEEP
24576:kwHsU2QfJr5SOlFujlI99FwPhp6RBvtSGF:kwHhJfJNSOHuLPS7
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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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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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