Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
20/07/2024, 00:21
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
5e4d8a82eb3f7e25eac4dec81159a35a_JaffaCakes118.dll
Resource
win7-20240708-en
4 signatures
150 seconds
General
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Target
5e4d8a82eb3f7e25eac4dec81159a35a_JaffaCakes118.dll
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Size
52KB
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MD5
5e4d8a82eb3f7e25eac4dec81159a35a
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SHA1
2de363ed0ae59863e2916100ec49e764d2a34e8b
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SHA256
6d94061a72155816bbc32475baf2f1bb94b39759a77a155585c6b527e8eefc09
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SHA512
ef4e962f5ac7120ff7e47341cbc7ec0e8c4ac62541dcdc3272b1f7ff9748c924bba9fce4b88e71aa31e5cd6027d59b243aceb0bf33d0f5f40a75b1a89bef876f
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SSDEEP
768:NXFWO4V580hXZgLDhnJ3yLOk6EW39g/x+9BY+jg3J5SbgrjxS5B6p6wj42vc3:NXQO4Vtt0DEOBXg/xMB4sbgBe2H42va
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\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}\NoExplorer = "1" regsvr32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1872 1668 WerFault.exe 84 -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\DisplayName = "°Ù¶È" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\URL = "http://www.baidu.com/s?tn=leizhen_dg&ie=utf-8&wd={searchTerms}" regsvr32.exe Key deleted \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A} regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Software\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77} regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9}\DisplayName = "Google" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9}\URL = "http://www.gggdu.com/google?q={searchTerms}" regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Software\Microsoft\Internet Explorer\SearchScopes regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\SuggestionsURL_JSON = "http://suggestion.baidu.com/su?wd={searchTerms}&action=opensearch&ie=utf-8&from=ie8" regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Software\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9} regsvr32.exe -
Modifies registry class 12 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage\Command regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\DefaultIcon regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7BA4C38C-6BE5-4F3C-980B-CEB48A777413}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5e4d8a82eb3f7e25eac4dec81159a35a_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell\OpenHomePage\Command regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell\OpenHomePage regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3080 wrote to memory of 1668 3080 regsvr32.exe 84 PID 3080 wrote to memory of 1668 3080 regsvr32.exe 84 PID 3080 wrote to memory of 1668 3080 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\5e4d8a82eb3f7e25eac4dec81159a35a_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3080 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\5e4d8a82eb3f7e25eac4dec81159a35a_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:1668 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 8803⤵
- Program crash
PID:1872
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1668 -ip 16681⤵PID:2716