Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
12-07-2024 12:26
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3d5e4d06164a71e122213939d4c44280_JaffaCakes118.dll
Resource
win7-20240705-en
windows7-x64
4 signatures
150 seconds
General
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Target
3d5e4d06164a71e122213939d4c44280_JaffaCakes118.dll
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Size
464KB
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MD5
3d5e4d06164a71e122213939d4c44280
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SHA1
09a8ac0e963ee30b2a98478a980ceb847927d2d7
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SHA256
84d665b2981bb1b55a3b1fc01e613007cc442ffbdb2b66b7bccc3e0a6d4546df
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SHA512
d43de50d58f30ce21386e47b7d1ad6a474bbc86b2b3f4b35a4fa3e0974be11d43906d9f1978b5b69bd2e3f6f89e5286ccd4d2bac29179576b00f32ec926f9364
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SSDEEP
12288:exWDZPTvWM2FBkeAnGK1yDQVVR176Hxw2ct:PNf20BxyWVR17+
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\{CF5159C2-895C-4188-98D5-748318E55F76} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CF5159C2-895C-4188-98D5-748318E55F76}\ regsvr32.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\New Windows\Allow\*.cn.yahoo.com regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\New Windows\Allow\*.baidu.com regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\AdvancedOptions\CRYPTO\LMZ_LOCKDOWN regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\AdvancedOptions\CRYPTO\LMZ_LOCKDOWN\CheckedValue = "1" regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\New Windows\Allow regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76}\ProgID\ = "3d5e4d06164a71e122213939d4c44280_JaffaCakes118.IEBHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.IEBHO regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.IEBHO\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.IEBHO\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CF5159C2-895C-4188-98D5-748318E55F76}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.IEBHO\Clsid\ = "{CF5159C2-895C-4188-98D5-748318E55F76}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1048 wrote to memory of 468 1048 regsvr32.exe 30 PID 1048 wrote to memory of 468 1048 regsvr32.exe 30 PID 1048 wrote to memory of 468 1048 regsvr32.exe 30 PID 1048 wrote to memory of 468 1048 regsvr32.exe 30 PID 1048 wrote to memory of 468 1048 regsvr32.exe 30 PID 1048 wrote to memory of 468 1048 regsvr32.exe 30 PID 1048 wrote to memory of 468 1048 regsvr32.exe 30
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\3d5e4d06164a71e122213939d4c44280_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:468
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