Analysis
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max time kernel
136s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
07-02-2023 01:43
Behavioral task
behavioral1
Sample
rufus-3.21.exe
Resource
win7-20220812-en
9 signatures
150 seconds
General
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Target
rufus-3.21.exe
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Size
1.3MB
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MD5
c2ab67a2561ac7f5add3256fe9bf85d4
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SHA1
cc5742d1f128c439740a56734c0e105f11a62fe6
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SHA256
d0554f1fc47407d678a4d8eace607272013c475033b636bfb1824ed6b1a22e36
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SHA512
936ffc79313ebd47ad41f13c5e922d77f4d58c43f0c4df3daf3caff06bf8ca0cb2586c63c685b1c60ffe9d24ce1815ea2fe02d09e4618ba7cef897dffaa01467
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SSDEEP
24576:3sqLY/SQe/JGy8U6epCdC4B4K8cvKBUlrVI3r+B4lz/i/ywNRhjSFOA:jYARGyLmCq4VciKlr2b+EjmzSN
Malware Config
Signatures
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Processes:
resource yara_rule behavioral2/memory/5000-132-0x0000000000290000-0x0000000000676000-memory.dmp upx behavioral2/memory/5000-133-0x0000000000290000-0x0000000000676000-memory.dmp upx -
Processes:
rufus-3.21.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rufus-3.21.exe -
Drops file in System32 directory 4 IoCs
Processes:
rufus-3.21.exedescription ioc process File opened for modification C:\Windows\System32\GroupPolicy rufus-3.21.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini rufus-3.21.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol rufus-3.21.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI rufus-3.21.exe -
Checks SCSI registry key(s) 3 TTPs 17 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
rufus-3.21.exevds.exedescription ioc process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\Service rufus-3.21.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\Filters rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\UpperFilters rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\LowerFilters rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\UpperFilters rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\LowerFilters rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Service rufus-3.21.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Filters rufus-3.21.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName rufus-3.21.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000 rufus-3.21.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 rufus-3.21.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\HardwareID rufus-3.21.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
rufus-3.21.exedescription pid process Token: SeDebugPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe Token: SeLoadDriverPrivilege 5000 rufus-3.21.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
rufus-3.21.exepid process 5000 rufus-3.21.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\rufus-3.21.exe"C:\Users\Admin\AppData\Local\Temp\rufus-3.21.exe"1⤵
- Checks whether UAC is enabled
- Drops file in System32 directory
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵