Analysis
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max time kernel
91s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 14:35
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f14a5bfdadc915efd8748d77fcaad8e6_JaffaCakes118.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
f14a5bfdadc915efd8748d77fcaad8e6_JaffaCakes118.dll
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Size
252KB
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MD5
f14a5bfdadc915efd8748d77fcaad8e6
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SHA1
1c7dc5ccb3212e2ce5f28f03c3285227e30de00f
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SHA256
7351886cdf3a677ad115591ec23b61d836596bcc5fb7b3f49a816867e6d8fc51
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SHA512
67f862a0f7b7cfc44cc28e957f0d1cd5fe47ca7e10145bdd134db8979f8dc8cffacebf0b50cf74b435b0dcaf373f6265624c4b03771187e7821b0fb0c8556821
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SSDEEP
3072:g3BagZ5C+YYVVlhHAYZ26Ac9O7WZg1fH9+lxtVfOa0VHUULiQUAKGNp1R8me9LbT:5cVVlLBdZgF9+L0m5i8r
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{317833AD-3A96-11DC-8314-0911200C9A66}\1 = "2" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{317833AD-3A96-11DC-8314-0911200C9A66} regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{317833AD-3A96-11DC-8314-0911200C9A66} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{317833AD-3A96-11DC-8314-0911200C9A66}\ = "BHO-X" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{317833AD-3A96-11DC-8314-0911200C9A66}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{317833AD-3A96-11DC-8314-0911200C9A66}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f14a5bfdadc915efd8748d77fcaad8e6_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{317833AD-3A96-11DC-8314-0911200C9A66}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3752 wrote to memory of 3884 3752 regsvr32.exe 85 PID 3752 wrote to memory of 3884 3752 regsvr32.exe 85 PID 3752 wrote to memory of 3884 3752 regsvr32.exe 85
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f14a5bfdadc915efd8748d77fcaad8e6_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3752 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f14a5bfdadc915efd8748d77fcaad8e6_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3884
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