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Analysis
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max time kernel
13s -
max time network
20s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 04:50
Static task
static1
Behavioral task
behavioral1
Sample
cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe
Resource
win10v2004-20220901-en
Errors
General
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Target
cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe
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Size
84KB
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MD5
7c8d0f74f6d2f1b0f1d40a120d9efbae
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SHA1
a7ee2d41e61eec5ca946193bb548899de7c604b9
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SHA256
cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172
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SHA512
19f9d8f39e1e966e4f5a9e37f52915b92d17c7d0b4dac9946c86b765a8d67375c8bf1c7b5abd488aea3393aed1a3ea104252f1040e24681e84d93084fe59fb4c
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SSDEEP
1536:+oikayYALqYRz3Lz7qr/ntwuGON+uD5mdpEUeOA5eU3zM3RwLxrkC9gtYoWoht5z:1GERz7qr/nllUuDYRHky3WCT5I9LHoB
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\biotefj.dll cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process 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\ColorizationColor = "3288365271" 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\Explorer\Accent\StartColorMenu = "4288567808" 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\ColorizationGlassAttribute = "1" 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\AccentColor = "4292311040" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM 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\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "223" 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\AccentColorMenu = "4292311040" LogonUI.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 1180 cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1256 LogonUI.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe"C:\Users\Admin\AppData\Local\Temp\cb8c51c9a8ce7a957640a2b33a95a08f2936055834170394176dd3d079ea0172.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:1180
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa39f1855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1256