General
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Target
1.exe
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Size
211KB
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Sample
230122-xlvfxshb37
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MD5
511e849a593b7787b1387b56f12d8c05
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SHA1
6c830eed04570ba8f8873cba3f61ca568f7b9535
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SHA256
7757c11c449860e2dd54ae97e05835fb39f89a9c93f32dfc23b258ad49c3622e
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SHA512
3d803144229fd7e63e971d0bd617fb96eaf2a1e802ad36dc2eac3fe809b351f68d07f4b81ebd24b9367e72b9d5e91a655a07acfd430ee631e226def7ff987fe6
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SSDEEP
6144:Bia1gMHOPDWIhID8X/4DQFu/U3buRKlemZ9DnGAetTsB+Q+:BIMH06cID84DQFu/U3buRKlemZ9DnGAI
Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20221111-en
Malware Config
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Targets
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Target
1.exe
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Size
211KB
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MD5
511e849a593b7787b1387b56f12d8c05
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SHA1
6c830eed04570ba8f8873cba3f61ca568f7b9535
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SHA256
7757c11c449860e2dd54ae97e05835fb39f89a9c93f32dfc23b258ad49c3622e
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SHA512
3d803144229fd7e63e971d0bd617fb96eaf2a1e802ad36dc2eac3fe809b351f68d07f4b81ebd24b9367e72b9d5e91a655a07acfd430ee631e226def7ff987fe6
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SSDEEP
6144:Bia1gMHOPDWIhID8X/4DQFu/U3buRKlemZ9DnGAetTsB+Q+:BIMH06cID84DQFu/U3buRKlemZ9DnGAI
Score10/10-
Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
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Detects Zeppelin payload
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Zeppelin Ransomware
Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.
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Executes dropped EXE
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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