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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
04/07/2024, 08:16
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
253e874dc81fb8122726c8b7ed7db209_JaffaCakes118.dll
Resource
win7-20240611-en
3 signatures
150 seconds
General
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Target
253e874dc81fb8122726c8b7ed7db209_JaffaCakes118.dll
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Size
172KB
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MD5
253e874dc81fb8122726c8b7ed7db209
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SHA1
6ca713b26e1e5d6a419796d883593922c19e9120
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SHA256
3b7260836ad0019fa02d90e699c4a6869b902064011ddcbbd8b79e9394124c1c
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SHA512
2cb4c4d546dcd14ec62e179ef77bd67cfb43f0489593875b31a326861bc217a274265b351c9c247d602eaf06efa2a0b890fe03229ccb927ce68a904105688894
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SSDEEP
3072:1Twb9GfvkdPmyaDMjNKpWqnjwsYIBj1N86AQpqpcIVjEsxXD:1TYGfvkAyaQjcpL3YI/yQpqVVd
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 3 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 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{E90045AC-0C05-330A-A44A-91F2CAD42A5C} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{E90045AC-0C05-330A-A44A-91F2CAD42A5C}\IExplore = "1" regsvr32.exe -
Modifies registry class 29 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E90045AC-0C05-330A-A44A-91F2CAD42A5C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\253e874dc81fb8122726c8b7ed7db209_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\TypeLib\ = "{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E90045AC-0C05-330A-A44A-91F2CAD42A5C}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\ = "IDOMPeek" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\ = "IDOMPeek" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\ = "LIB" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\TypeLib\ = "{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E90045AC-0C05-330A-A44A-91F2CAD42A5C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E90045AC-0C05-330A-A44A-91F2CAD42A5C}\ = "D" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E90045AC-0C05-330A-A44A-91F2CAD42A5C}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B9E6F0B8-21DB-37E3-BC27-AE5B9A81E2DC}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\253e874dc81fb8122726c8b7ed7db209_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3F6675D9-1697-3A73-B05F-C6DFB5CC6428}\TypeLib\Version = "1.0" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1100 wrote to memory of 2112 1100 regsvr32.exe 81 PID 1100 wrote to memory of 2112 1100 regsvr32.exe 81 PID 1100 wrote to memory of 2112 1100 regsvr32.exe 81
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\253e874dc81fb8122726c8b7ed7db209_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1100 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\253e874dc81fb8122726c8b7ed7db209_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2112
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