General
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Target
a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802
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Size
729KB
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Sample
221010-257mtadgcm
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MD5
64178c18b19cc1ef6c02c492d59fde9a
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SHA1
d16345aefc7a03e48cd788f61d7cb241ac6f7d12
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SHA256
a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802
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SHA512
5c7d6508d0243e7ee2bece56509ddf2a4e532e7ab56dc3fc2bd339e35830ebfb6703d65ed27abb8e2a2871b25daca8c15670d6f9ce9e4fd1d696bef66749e788
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SSDEEP
12288:wbNJxKezSb+Us7qor5814I4VVR7J8nlT7HU4s4w6EB8T+ZeRVd0PAvmNCtfurtA3:wxa+n7qIbI4PR7SlTrU4sP60Q+Z4z0Pw
Static task
static1
Behavioral task
behavioral1
Sample
a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
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extension
.tohj
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offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
54.9
517
https://t.me/larsenup
https://ioc.exchange/@zebra54
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profile_id
517
Targets
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Target
a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802
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Size
729KB
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MD5
64178c18b19cc1ef6c02c492d59fde9a
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SHA1
d16345aefc7a03e48cd788f61d7cb241ac6f7d12
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SHA256
a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802
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SHA512
5c7d6508d0243e7ee2bece56509ddf2a4e532e7ab56dc3fc2bd339e35830ebfb6703d65ed27abb8e2a2871b25daca8c15670d6f9ce9e4fd1d696bef66749e788
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SSDEEP
12288:wbNJxKezSb+Us7qor5814I4VVR7J8nlT7HU4s4w6EB8T+ZeRVd0PAvmNCtfurtA3:wxa+n7qIbI4PR7SlTrU4sP60Q+Z4z0Pw
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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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