Analysis
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max time kernel
92s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13-10-2024 18:09
Static task
static1
Behavioral task
behavioral1
Sample
4152a3bb986d2dc727bb2daa12148dd0_JaffaCakes118.dll
Resource
win7-20240903-en
General
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Target
4152a3bb986d2dc727bb2daa12148dd0_JaffaCakes118.dll
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Size
276KB
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MD5
4152a3bb986d2dc727bb2daa12148dd0
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SHA1
a5e850ea51692ff921de3e382949092abda8fa02
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SHA256
e2025f841cdcef15d245362869a5f0c65c7257f910c36fdb80c990bf7e0c6a09
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SHA512
3a0ca1898db470758cb300f957f5bf48f0bef28ac7869dde8d41f5fb24da9c3b8b14f44dfdbe3c3cacebebb56681ea8e3d57e218c4eb76b37be596fae2990602
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SSDEEP
6144:Jpp8+ZheQlRGKvpW/d0SlCdDWl+2Aa8t54kuJ8UNjjNob:J38+XeQHv4/6flcrMqlJ82Bob
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\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\ = "Microsoft User" 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 47 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1\ = "CFunPlayer Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CurVer\ = "BHO.FunPlayer.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4152a3bb986d2dc727bb2daa12148dd0_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1\CLSID\ = "{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\ = "CFunPlayer Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\ = "CFunPlayer Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\ProgID\ = "BHO.FunPlayer.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\ = "BHO 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib\ = "{797AD939-E96C-43E1-ACBD-778DFFD8748C}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CLSID\ = "{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\VersionIndependentProgID\ = "BHO.FunPlayer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\InprocServer32\ThreadingModel = "apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\AppID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\TypeLib\ = "{797AD939-E96C-43E1-ACBD-778DFFD8748C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ = "IFunPlayer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ = "IFunPlayer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4152a3bb986d2dc727bb2daa12148dd0_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib\ = "{797AD939-E96C-43E1-ACBD-778DFFD8748C}" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5024 wrote to memory of 1320 5024 regsvr32.exe 83 PID 5024 wrote to memory of 1320 5024 regsvr32.exe 83 PID 5024 wrote to memory of 1320 5024 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\4152a3bb986d2dc727bb2daa12148dd0_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\4152a3bb986d2dc727bb2daa12148dd0_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:1320
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