Analysis
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max time kernel
94s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
09-09-2024 15:29
Static task
static1
Behavioral task
behavioral1
Sample
d69962ee86f5c9146185a57a19c870af_JaffaCakes118.dll
Resource
win7-20240903-en
General
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Target
d69962ee86f5c9146185a57a19c870af_JaffaCakes118.dll
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Size
640KB
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MD5
d69962ee86f5c9146185a57a19c870af
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SHA1
6597c7c37c6ffd330bf6e78f2850b53d1e83062d
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SHA256
c97c2488526ac4456ed62a18a8b4018cb45a1dd159c6fe2fb7485c612630cdc1
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SHA512
4d2030c34b27dae37d0bf75c500ed65cc478e07d1241aee27fba66427bd3abba8001f77fa3007f261881b8cbd133aaff59fc8bbfb2eab6af17a895894238b0a1
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SSDEEP
12288:HkdtYzsZDM2fjYiV/UzxoyS7nUmsn7lrp4DeQh+d2tePm:EdGzs/0kwolUf7lrpAvh+dA+
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\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458} regsvr32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}\ = "brm inc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.brm inc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.brm inc\Clsid\ = "{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}\ProgID\ = "d69962ee86f5c9146185a57a19c870af_JaffaCakes118.brm inc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4A8D-A8C8-51A8-1A282BF98458}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.brm inc regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.brm inc\ = "brm inc" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2968 wrote to memory of 4232 2968 regsvr32.exe 83 PID 2968 wrote to memory of 4232 2968 regsvr32.exe 83 PID 2968 wrote to memory of 4232 2968 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\d69962ee86f5c9146185a57a19c870af_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4232
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