General
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Target
TrustedInstaller.exe
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Size
449KB
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Sample
201211-w5bb3b7lsa
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MD5
574f031251f67bcc6ea9168364d2fbfd
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SHA1
f5d6140140829eaa550d2ef57b3ca8281b3d79bb
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SHA256
438d83a22ed38bb2241a99b96d644826522b28327f63055840ee7632d8e95cd8
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SHA512
d7234b117aabb6a50e8619d4bc3a6d283c53d7a7ee396a67f73985d6e09156ab2fc89ec52bddbd949d9236ecde081cc0123719a474b12966a5beaf910de8a15b
Static task
static1
Behavioral task
behavioral1
Sample
TrustedInstaller.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
TrustedInstaller.exe
Resource
win10v20201028
Malware Config
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
wiruxa@airmail.cc
anygrishevich@yandex.ru
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
wiruxa@airmail.cc
anygrishevich@yandex.ru
Targets
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Target
TrustedInstaller.exe
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Size
449KB
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MD5
574f031251f67bcc6ea9168364d2fbfd
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SHA1
f5d6140140829eaa550d2ef57b3ca8281b3d79bb
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SHA256
438d83a22ed38bb2241a99b96d644826522b28327f63055840ee7632d8e95cd8
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SHA512
d7234b117aabb6a50e8619d4bc3a6d283c53d7a7ee396a67f73985d6e09156ab2fc89ec52bddbd949d9236ecde081cc0123719a474b12966a5beaf910de8a15b
Score10/10-
Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
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Executes dropped EXE
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Deletes itself
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Loads dropped DLL
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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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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