Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
08/04/2024, 12:59
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
e784fa0a94e205d1bde617b1d2607d15_JaffaCakes118.dll
Resource
win7-20240215-en
4 signatures
150 seconds
General
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Target
e784fa0a94e205d1bde617b1d2607d15_JaffaCakes118.dll
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Size
147KB
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MD5
e784fa0a94e205d1bde617b1d2607d15
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SHA1
c7fd1782c39a6d5945fd4cd8d0132d01c65d02f3
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SHA256
56f465e1c49018f32f660211932e990af6c79e65917c76e5730af7538870fa82
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SHA512
c3843b8d3f63f6dc9eaedc755f1b2f1f8f5fba81867053667ae2138a47ec430561866b57331d99c5f8f647027097b6367acecae1be7543a8a5073bc0df378bac
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SSDEEP
1536:syGMnS9iMh82leTM5nP4R5HZRIv6WagAkgawkNTd1yU70LHz:syvSdeTM5nPEGRnWmr1yUQ
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\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A} regsvr32.exe -
Modifies registry class 42 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e784fa0a94e205d1bde617b1d2607d15_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProgID\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\ = "{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ = "IIEHlprObj" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e784fa0a94e205d1bde617b1d2607d15_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\ = "IEHelper 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\ = "{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2960 regsvr32.exe 2960 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28 PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28 PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28 PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28 PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28 PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28 PID 1776 wrote to memory of 2960 1776 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\e784fa0a94e205d1bde617b1d2607d15_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\e784fa0a94e205d1bde617b1d2607d15_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2960
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