Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-06-2024 12:54
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
023703aceed9d9cd32f459e3f05a5314_JaffaCakes118.dll
Resource
win7-20240508-en
4 signatures
150 seconds
General
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Target
023703aceed9d9cd32f459e3f05a5314_JaffaCakes118.dll
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Size
468KB
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MD5
023703aceed9d9cd32f459e3f05a5314
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SHA1
cc6456e63523fbb2e86f09603fab23e6463e26cd
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SHA256
7c66b371a2f328b95abce9bc7953eae138883ff5073114be3085385e4524d73d
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SHA512
4a2d08e2eada0b49f6b984ba6c136be449d19ac02414014703c989ae0ad624fa87dbe0a8b98d5b6f70692b62cd6a0188f1160ac669f0cd32ff2540e0be85a5b1
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SSDEEP
12288:Yk4Mheqvaee3B1+8ZG43w5H0xqkITRsMEiut6R/JjiR:Yk4Mheqvaee3BgyG8w5UxIEiuAo
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 Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c}\NoExplorer = "\"\"" regsvr32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c} regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars regsvr32.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c}\InProcServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\ = "Search panel" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\023703aceed9d9cd32f459e3f05a5314_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c}\ = "mysidesearch search enhancer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\023703aceed9d9cd32f459e3f05a5314_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\Implemented Categories regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\Implemented Categories\{00021493-0000-0000-C000-000000000046} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{37fe354b-92c3-2ea3-6f6e-c5f2b75f004c}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{02304fe7-679e-33fa-8c8f-43c9e8ebeb7c}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1828 wrote to memory of 4208 1828 regsvr32.exe 81 PID 1828 wrote to memory of 4208 1828 regsvr32.exe 81 PID 1828 wrote to memory of 4208 1828 regsvr32.exe 81
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\023703aceed9d9cd32f459e3f05a5314_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\023703aceed9d9cd32f459e3f05a5314_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:4208
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