Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
12-07-2024 06:06
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3c3e78b130ff2c1a639996e6ddc1cfb3_JaffaCakes118.dll
Resource
win7-20240704-en
windows7-x64
3 signatures
150 seconds
General
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Target
3c3e78b130ff2c1a639996e6ddc1cfb3_JaffaCakes118.dll
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Size
264KB
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MD5
3c3e78b130ff2c1a639996e6ddc1cfb3
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SHA1
8fec85e633da2f468af4d412b6cd8b0de622250a
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SHA256
ba9dda6f84946a247f41a9159a2ad8a1fe357f6615fbb61cdba7dd30fa31e30d
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SHA512
fcf71705c45445bc52dadd89d36c0524db8a57226d57e6aeb7188c8e4e4f53e3dc9685b0fc48929ebf6b531bc086b56d7684ad47f5edc52ebcbb619fe3584f40
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SSDEEP
6144:F3CyqlZNh8RZZnE/G9PNx0+UQiq1TDI1pRewz9SwXO407mS:RTqlKRw/G9lOmfaTJSw+407z
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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\ = "Microsoft User" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0} regsvr32.exe -
Modifies registry class 47 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CLSID 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\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib 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\BHO.FunPlayer.1\CLSID 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3c3e78b130ff2c1a639996e6ddc1cfb3_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ProxyStubClsid32 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}\TypeLib 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\FLAGS 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\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\FLAGS\ = "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}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" 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}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\TypeLib\ = "{797AD939-E96C-43E1-ACBD-778DFFD8748C}" 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\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ = "IFunPlayer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1\CLSID\ = "{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\3c3e78b130ff2c1a639996e6ddc1cfb3_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0 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\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ = "IFunPlayer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\TypeLib\ = "{797AD939-E96C-43E1-ACBD-778DFFD8748C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1\ = "CFunPlayer Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer\CurVer\ = "BHO.FunPlayer.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44} 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 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\CLSID\{ED493CC4-E87B-4D8C-AC59-2A87A14237A0}\ProgID\ = "BHO.FunPlayer.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{797AD939-E96C-43E1-ACBD-778DFFD8748C}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5CC0BADE-4049-4B84-B998-D1AD4D7B9C44}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FunPlayer.1 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}\ProgID regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2840 wrote to memory of 1140 2840 regsvr32.exe 83 PID 2840 wrote to memory of 1140 2840 regsvr32.exe 83 PID 2840 wrote to memory of 1140 2840 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\3c3e78b130ff2c1a639996e6ddc1cfb3_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2840 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\3c3e78b130ff2c1a639996e6ddc1cfb3_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1140
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