General
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Target
buran.exe
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Size
222KB
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Sample
210202-gyhneygrpj
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MD5
3058d76e5fb2f2d2f65e232e98536182
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SHA1
3e6e9abd6241526bf932885d118cbbe54e4e1cbe
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SHA256
5c1141aa7d0b9fba71822607f3b1b086e2cc4529e63221a9a6ede74fa366512f
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SHA512
b47bc559e183abe8d4be8e7b1f652f01bab0095bf37797d95a541d729dad82a8a1eb1a804bc7c009ab3d49b446498a2e6b487f680bb203df3e17c212f85dfd95
Static task
static1
Behavioral task
behavioral1
Sample
buran.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
buran.exe
Resource
win10v20201028
Malware Config
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Wiederherstellung@cock.li
Wiederherstellungsdatei@airmail.cc
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Wiederherstellung@cock.li
Wiederherstellungsdatei@airmail.cc
Targets
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Target
buran.exe
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Size
222KB
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MD5
3058d76e5fb2f2d2f65e232e98536182
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SHA1
3e6e9abd6241526bf932885d118cbbe54e4e1cbe
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SHA256
5c1141aa7d0b9fba71822607f3b1b086e2cc4529e63221a9a6ede74fa366512f
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SHA512
b47bc559e183abe8d4be8e7b1f652f01bab0095bf37797d95a541d729dad82a8a1eb1a804bc7c009ab3d49b446498a2e6b487f680bb203df3e17c212f85dfd95
Score10/10-
Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
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Clears Windows event logs
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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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Enumerates physical storage devices
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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