Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04/07/2024, 07:26
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.dll
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Size
669KB
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MD5
251c0879508fbcdc12eee9d315381cb8
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SHA1
b00fba6b42e710fc4e8c199fe27f6293d883f56f
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SHA256
2f2ad7d2d291bd6f78e173d0371f53aac20ab901086e4de1a889a43d55d81bce
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SHA512
20f52dfb3b2439761f94c6a193358f8d6e24febe1380d8908b6d1ffe4ad293cc6151391c28589376781931c8e7d5869951a1ab3abd2e670ccf838e85b9a9fb69
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SSDEEP
12288:rIukUn4HHRaIsGyLmOtEAtk/1+JsHgWl9/XHYmBGpaZDpgL/fO79s:rrkM4nAJDL/yLHgw/XHYmBiaZdgT
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.axc\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}\ProgID\ = "251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.axc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.axc\ = "axc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.axc\Clsid\ = "{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}\ = "axc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-9CFC-AF12-CEF4-E427AA63EC6F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.axc regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28 PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28 PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28 PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28 PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28 PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28 PID 2492 wrote to memory of 2192 2492 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\251c0879508fbcdc12eee9d315381cb8_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2192
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