General
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Target
build.exe
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Size
830KB
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Sample
210505-jdyn8vmyhj
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MD5
d6194deeb56ba1418c6a758b67cf150f
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SHA1
1f638f08508916f11c2c5f3220ba2f86a4f06549
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SHA256
31e991e037ef5ee29b3921a8ed21fe3c1284914efb88a12e8bdda2e094a41b18
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SHA512
43ba54546f45d55de1db3c6d5bb26ae06591387e10f6585d5830f7e6583750a450505da2059c363e0401e0b210effec46b4e3198d6a31a5c60e2fd7164051ab7
Malware Config
Targets
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Target
build.exe
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Size
830KB
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MD5
d6194deeb56ba1418c6a758b67cf150f
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SHA1
1f638f08508916f11c2c5f3220ba2f86a4f06549
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SHA256
31e991e037ef5ee29b3921a8ed21fe3c1284914efb88a12e8bdda2e094a41b18
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SHA512
43ba54546f45d55de1db3c6d5bb26ae06591387e10f6585d5830f7e6583750a450505da2059c363e0401e0b210effec46b4e3198d6a31a5c60e2fd7164051ab7
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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