Analysis
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max time kernel
119s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
22-06-2024 13:09
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll
Resource
win7-20240508-en
4 signatures
150 seconds
General
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Target
0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll
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Size
118KB
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MD5
0249fbe699f6cc74540a4c6a818f6010
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SHA1
f86379f4b4e4b0d3e71977f19bb4771d26bacd61
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SHA256
779e0c6f4e300d834bdbc3bf17ce53a4cbd9701850e291967aad5219a643b658
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SHA512
b5e8a5485acc701b946d5b7f124ddf45c0647bb0e2d455eaa6046e9b86a42eafbc0f2f56ed94eb79481b3e5a7c9f25a4e0980783dccd3f404e01d374ba82680e
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SSDEEP
3072:RXN5MdJKeQYlwovHGCP8oNOdKOFp5+wpxF2hfM:R9MJKej01DgOTtxsfM
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\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc} regsvr32.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\Default = 45c8f73471a7054e86c7cc16e3f4f4fc regsvr32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc}\InprocServer32\ThreadingModel = "Both" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28 PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28 PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28 PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28 PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28 PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28 PID 1036 wrote to memory of 2232 1036 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:2232
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