Analysis
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max time kernel
2s -
max time network
3s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
03-07-2024 06:31
Static task
static1
Behavioral task
behavioral1
Sample
21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe
Resource
win10v2004-20240508-en
Errors
General
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Target
21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe
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Size
100KB
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MD5
21641e2a1f1ffec61b49cafe4c484ee9
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SHA1
b7a6b55091a818dff1c208f8fcb67df304ab3954
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SHA256
94e18356971da2fc277b32660b05db0eb029e9f740746762b15ba4cde46bf3ce
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SHA512
31c4a385ae561c2c20fc999bf7e562e18812cafa262a2752b43a2cb7e466e235fd9995427a5f251ee2906c16bc81f211d42431f3cae5b3f33e08c49132a415c6
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SSDEEP
3072:vq9XYeIKm8dkc5soEz0uU+ykTsRgo7kY:i9oeIckc5szjU18FY
Malware Config
Signatures
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Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\otujgei.dll 21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process 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 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\EnableWindowColorization = "233" 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 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\CurrentVersion\Explorer\Accent\AccentColorMenu = "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\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\ColorizationAfterglowBalance = "10" LogonUI.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 4548 21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1676 LogonUI.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\21641e2a1f1ffec61b49cafe4c484ee9_JaffaCakes118.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:4548
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3996855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1676