General
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Target
build.exe
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Size
830KB
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Sample
210505-ck978cwclx
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MD5
f6f863670b1315ad67df975c14c75c02
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SHA1
deffd6edb820748afa555652fef3ff27461a61bc
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SHA256
1ed1b4315c2525253918400777d7622581d7f8c161101e918999bd9d8c99be85
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SHA512
10b6908430db5f3955739f0030f9bd7ec844f6fa5d89435b40443fd72b25c0cd2f9c289a9960c4aab3523eadbd05a86c721e4b9ed673c420f174016fd715d8df
Malware Config
Targets
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Target
build.exe
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Size
830KB
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MD5
f6f863670b1315ad67df975c14c75c02
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SHA1
deffd6edb820748afa555652fef3ff27461a61bc
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SHA256
1ed1b4315c2525253918400777d7622581d7f8c161101e918999bd9d8c99be85
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SHA512
10b6908430db5f3955739f0030f9bd7ec844f6fa5d89435b40443fd72b25c0cd2f9c289a9960c4aab3523eadbd05a86c721e4b9ed673c420f174016fd715d8df
Score10/10-
Deletes Windows Defender Definitions
Uses mpcmdrun utility to delete all AV definitions.
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Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Vidar
Vidar is an infostealer based on Arkei stealer.
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Disables Task Manager via registry modification
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Downloads MZ/PE file
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Drops file in Drivers directory
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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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Reads local data of messenger clients
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses 2FA software files, possible credential harvesting
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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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