Analysis
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max time kernel
38s -
max time network
65s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 06:59
Static task
static1
Behavioral task
behavioral1
Sample
c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe
Resource
win10v2004-20220812-en
Errors
General
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Target
c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe
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Size
79KB
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MD5
202f2cfec4fb7af10bb62d276176d3db
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SHA1
8cb4389ad84e0e13dc0da138e1aba3f5679fc4d3
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SHA256
c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84
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SHA512
43bfa9da984e4f32fb6a1ce1e11c00b0cf7b79a65c0314a29d594ac9dc3268875103f2a654186834ae55f50e4c5515e5484262bbad38bb02b4519cf90f84a4d5
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SSDEEP
1536:c41eKkSFQ8FEIvGLWqlsp2B2AI5iYJ8uK0VyKOga0AHebfBStZPonJlIK:3kV8+IOLtTQAkJ8CO0A+bJS7PonJlIK
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\tkxiark.dll c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process 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\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\ColorizationBlurBalance = "1" 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\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "174" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent 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\ColorizationColorBalance = "89" 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 2012 c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2060 LogonUI.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe"C:\Users\Admin\AppData\Local\Temp\c099e3fae5a44d5df59986ae9d48abd777496160d3c08810648636a57bf6ec84.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:2012
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa39d6855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2060