Analysis
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max time kernel
132s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21-08-2024 09:03
Static task
static1
Behavioral task
behavioral1
Sample
b2de6f07043978d5712b612f2efdab46_JaffaCakes118.dll
Resource
win7-20240704-en
General
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Target
b2de6f07043978d5712b612f2efdab46_JaffaCakes118.dll
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Size
640KB
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MD5
b2de6f07043978d5712b612f2efdab46
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SHA1
8351becf8314caec14e9bdbb670ba5e5a270ccb4
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SHA256
430e8573202ae2b38b46e7249d49a7a57bf4756f963c7ec89bff4245ea2a550c
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SHA512
688aa7efa17b96aed3de03a976bc0b6bb2e1eba347b2247529c563aa955f02bf6e25cdf6918fd35dae1d5639ad4da2c2a1a0ef298a68ce41d754ee9458c72a8a
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SSDEEP
12288:m0Et9YDc5DMWfT44XUDxoyiD02sHtayXjhc442tePm:2tWDc/EXouPtDjhR4A+
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-3F97-6EE9-F22D-6AC778238239} 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-3F97-6EE9-F22D-6AC778238239}\ProgID\ = "b2de6f07043978d5712b612f2efdab46_JaffaCakes118.brm inc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-3F97-6EE9-F22D-6AC778238239}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-3F97-6EE9-F22D-6AC778238239}\ = "brm inc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-3F97-6EE9-F22D-6AC778238239}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-3F97-6EE9-F22D-6AC778238239}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.brm inc regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.brm inc\ = "brm inc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.brm inc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.brm inc\Clsid\ = "{CC01FC6C-3F97-6EE9-F22D-6AC778238239}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-3F97-6EE9-F22D-6AC778238239} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-3F97-6EE9-F22D-6AC778238239}\ProgID regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3604 wrote to memory of 4964 3604 regsvr32.exe 84 PID 3604 wrote to memory of 4964 3604 regsvr32.exe 84 PID 3604 wrote to memory of 4964 3604 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\b2de6f07043978d5712b612f2efdab46_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4964
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