Analysis
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max time kernel
9s -
max time network
14s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 20:30
Static task
static1
Behavioral task
behavioral1
Sample
6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe
Resource
win10v2004-20220901-en
Errors
General
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Target
6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe
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Size
88KB
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MD5
5917194b2d0f80b31be10f7b06caef08
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SHA1
ac7d7f8f16333c89225b3a696a629e461c9d5e02
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SHA256
6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547
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SHA512
db954bc2f5cee08a7428afc80ef4f10c831261460d9eebe6d4d4411bfd3e920b902383f06f7e76fdc1be9e7a52abb2600366b5a2b0e210a50efb24a88feca402
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SSDEEP
1536:LZ3Rb1u2fFTr37kEUGcvPxANeAi8v86zRi3zXMmuGYHoosJlIU:LtLHFTD7zPcZAnv89ghVHoosJlIU
Malware Config
Signatures
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Modifies AppInit DLL entries 2 TTPs
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Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\yhjsroi.dll 6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "223" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 3108 6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1156 LogonUI.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe"C:\Users\Admin\AppData\Local\Temp\6650991c5cebc26728ea6860cac5383a2f89337545c7620869c0d8761c840547.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:3108
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa39e7855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1156