Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
16/07/2024, 10:01
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.dll
Resource
win7-20240704-en
3 signatures
150 seconds
General
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Target
4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.dll
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Size
496KB
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MD5
4dd2b147bdd919b3bba913664a5c82b6
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SHA1
c1ccd36dc488f0a615883c6ea845201fe29f6580
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SHA256
d11392c66c7a111a1b4376e220cefe79dddad5740460549853cf0ff5aba83cfb
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SHA512
82361f587c5c75110603b0e09c3f03334fc9f2f152ab1925dcbb3c9d90c0a8ac2ca9527fcb2c7506bd2840ddebb0ed6c708c97012493882f79df2e3942734b77
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SSDEEP
12288:kctOmHkfYUMY6V4K3Ui3C6LgzYkzuEkbWQrdx:kYOmEfYUxEFkiy6PSqrdx
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\{921F7C9E-E24A-4A9A-847C-1708FBE274E7} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7}\ = "JavaPortableMix.config" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.JavaPortableMix.config\ = "JavaPortableMix.config" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7}\ProgID\ = "4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.JavaPortableMix.config" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.JavaPortableMix.config regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.JavaPortableMix.config\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.JavaPortableMix.config\Clsid\ = "{921F7C9E-E24A-4A9A-847C-1708FBE274E7}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{921F7C9E-E24A-4A9A-847C-1708FBE274E7}\ProgID regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30 PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30 PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30 PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30 PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30 PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30 PID 2848 wrote to memory of 2808 2848 regsvr32.exe 30
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\4dd2b147bdd919b3bba913664a5c82b6_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2808
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