Analysis
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max time kernel
134s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
16/08/2024, 21:38
Static task
static1
Behavioral task
behavioral1
Sample
a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.dll
Resource
win7-20240705-en
General
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Target
a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.dll
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Size
635KB
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MD5
a0081c4bb1e02c807e6530660286b00a
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SHA1
331ccb2fd822f3f40447a4128d4fdc62d1cdabfa
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SHA256
5dd1809ea09077bccdbd3232878e9f0d69da05f1e22d51227ece2d2010f42b1c
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SHA512
88d3c36fc7dc2c379e1acc098037ed9723c69c5a91f225345f7abad59499b0284171b1e295245c579c9d6807cb27595365aac02c679de12b52082274d1172252
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SSDEEP
12288:YM0t9FNcxDMmfrLAF8rZIRf2MmsXa3eXmoIhl/fO79s:ItjNcXnVInva3eXmxhF
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-CAC7-C8E2-6F84-57DDBA3FAA19} 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.axc regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.axc\ = "axc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.axc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}\ = "axc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}\ProgID\ = "a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.axc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.axc\Clsid\ = "{CC01FC6C-CAC7-C8E2-6F84-57DDBA3FAA19}" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2324 wrote to memory of 5084 2324 regsvr32.exe 84 PID 2324 wrote to memory of 5084 2324 regsvr32.exe 84 PID 2324 wrote to memory of 5084 2324 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2324 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a0081c4bb1e02c807e6530660286b00a_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:5084
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