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Analysis
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max time kernel
144s -
max time network
206s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
27/11/2022, 15:10
Static task
static1
Behavioral task
behavioral1
Sample
b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe
Resource
win10v2004-20221111-en
General
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Target
b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe
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Size
504KB
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MD5
86447465b59acd147c951c352ad9772b
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SHA1
48510c10fde03ccc05b6f47479515b3cc30ffd27
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SHA256
b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59
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SHA512
683ca38d5f427745d42b0e15f79abf86e6d21a605f3f394b3d4f90e9a0b2709fc00fcee68393073c5ba40a9d0ca64803a473065ba1a4fc8038e83315c81e26be
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SSDEEP
12288:U4t8mANGCP+nDfg3sTwHNAUft7lyuzKeFL5R/5/LFiRZI6Pz89cEYJouHbz+Wrm9:UEPH8xGwHp7V
Malware Config
Signatures
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Drops desktop.ini file(s) 2 IoCs
description ioc Process File opened for modification C:\Windows\assembly\Desktop.ini b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe File created C:\Windows\assembly\Desktop.ini b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\assembly\Desktop.ini b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp dw20.exe File opened for modification C:\Windows\assembly b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe File created C:\Windows\assembly\Desktop.ini b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dw20.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dw20.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dw20.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dw20.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dw20.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeBackupPrivilege 1272 b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe Token: SeSecurityPrivilege 1272 b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe Token: SeSecurityPrivilege 1272 b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe Token: SeRestorePrivilege 1136 dw20.exe Token: SeBackupPrivilege 1136 dw20.exe Token: SeBackupPrivilege 1136 dw20.exe Token: SeBackupPrivilege 1136 dw20.exe Token: SeBackupPrivilege 1136 dw20.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1272 wrote to memory of 1136 1272 b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe 85 PID 1272 wrote to memory of 1136 1272 b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe 85 PID 1272 wrote to memory of 1136 1272 b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe"C:\Users\Admin\AppData\Local\Temp\b6f71e8f9e147b7c73b87d1c1e019842b445230edf54b617ec9c18a6aa418e59.exe"1⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exedw20.exe -x -s 10522⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:1136
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