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Analysis
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max time kernel
92s -
max time network
136s -
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, 22:52
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3f320852b87c504aec4281643e50c25c_JaffaCakes118.dll
Resource
win7-20240705-en
4 signatures
150 seconds
General
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Target
3f320852b87c504aec4281643e50c25c_JaffaCakes118.dll
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Size
48KB
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MD5
3f320852b87c504aec4281643e50c25c
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SHA1
02f37519d184ba0b7a08408274ec026e9b533ee9
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SHA256
c286c8bb187aac036977dbb00b0ccc736d31ff1453fbbe529626352667124b10
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SHA512
854f27f748f37654c1ee8da081216ea3686b06f3a59f69eee817fb34ca60c4d826c0701ba9a4edf4022f04a0b2d500c51a760fbc0ae959eecd9d77cb6d9a3452
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SSDEEP
768:09U0Fo8HwT/SOg4cjDZz6D5ey+nTK+usiGbOpuFD2gXWclFKDnZOVRPPxAWPgxWv:QSYw+FI4yCWGbh6gXDF8UnPeWPgxy
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 3580 4460 WerFault.exe 83 -
description ioc Process Key deleted \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A} regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}\DisplayName = "°Ù¶È" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{6C08444C-B736-4C01-99A8-4CC9E59A9BC9}\DisplayName = "Google" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\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-1-5-21-384068567-2943195810-3631207890-1000\Software\Microsoft\Internet Explorer\SearchScopes regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77}" regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Software\Microsoft\Internet Explorer\SearchScopes\{20C3857E-3A7A-48FF-8C16-8BAFFDF5EE77} regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\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 Set value (str) \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\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-1-5-21-384068567-2943195810-3631207890-1000\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 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\{871C5380-42A0-1069-A2EA-08002B30309D}\DefaultIcon 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\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\{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\{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\\3f320852b87c504aec4281643e50c25c_JaffaCakes118.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3164 wrote to memory of 4460 3164 regsvr32.exe 83 PID 3164 wrote to memory of 4460 3164 regsvr32.exe 83 PID 3164 wrote to memory of 4460 3164 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\3f320852b87c504aec4281643e50c25c_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3164 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\3f320852b87c504aec4281643e50c25c_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:4460 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4460 -s 8723⤵
- Program crash
PID:3580
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4460 -ip 44601⤵PID:4360