General
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Target
file.exe
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Size
824KB
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Sample
230610-axxdbsee8y
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MD5
d6909d40f253b44b4269093760c0a9fa
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SHA1
3427f239d05c4e7d965b6dbf476ac02732fe4453
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SHA256
21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca
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SHA512
3fe81ef5a7bc8bd3292f01634795098c5ff4f3ce2b6bd98a69ec5e3c7e61db75575575b3e19312bdb4de324401783ececdc4bff6d1ccb3ec4c0922b472a1930b
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SSDEEP
12288:PSKlpaSVIm2VujnZ6OU0ZmoTRxjjEVBjqwDguOFt9Z2lfAL+3gugJ:PSKWw1YOLZm8HkRjDgX/O0MgugJ
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230221-en
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.nerz
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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
d6909d40f253b44b4269093760c0a9fa
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SHA1
3427f239d05c4e7d965b6dbf476ac02732fe4453
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SHA256
21f88b697a09920cff8e006f16c4ff42b22cedbe894c8f0a0c381ef2f8f393ca
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SHA512
3fe81ef5a7bc8bd3292f01634795098c5ff4f3ce2b6bd98a69ec5e3c7e61db75575575b3e19312bdb4de324401783ececdc4bff6d1ccb3ec4c0922b472a1930b
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SSDEEP
12288:PSKlpaSVIm2VujnZ6OU0ZmoTRxjjEVBjqwDguOFt9Z2lfAL+3gugJ:PSKWw1YOLZm8HkRjDgX/O0MgugJ
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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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