Analysis
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max time kernel
46s -
max time network
53s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 02:16
Static task
static1
Behavioral task
behavioral1
Sample
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe
Resource
win10v2004-20221111-en
General
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Target
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe
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Size
4.4MB
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MD5
0def9ee0dc01cec118de81a1c43c3843
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SHA1
720b9d8d022a124674e211341b18e1f4e6ffe729
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SHA256
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3
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SHA512
50b660ea11f908bdb3a817f12f7c85eb27d04492ab31ad1a1d6f5c45ec3c06dfc9e282d0f3d27128c810f2984b2dd65bebdc27c0edf29285ff8b5a6a605e94d1
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SSDEEP
49152:rhuK4jmWrCBDT+qLmxup4vdGKvghxfki14OCrZguQ0B+lyzEJ3jiC:z2mWrKyqlKcVWZgLYiTi
Malware Config
Signatures
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Registers COM server for autorun 1 TTPs 4 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\ikkb3jmilmJiT4.x64.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32 regsvr32.exe -
Loads dropped DLL 3 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exeregsvr32.exeregsvr32.exepid process 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe 840 regsvr32.exe 524 regsvr32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Installs/modifies Browser Helper Object 2 TTPs 8 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
Processes:
regsvr32.exe43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\ = "GoSave" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\NoExplorer = "1" regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\ = "GoSave" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\NoExplorer = "1" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe -
Drops file in Program Files directory 8 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exedescription ioc process File created C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.dll 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File opened for modification C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.dll 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File created C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.tlb 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File opened for modification C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.tlb 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File created C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.dat 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File opened for modification C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.dat 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File created C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dll 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe File opened for modification C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dll 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe -
Processes:
regsvr32.exe43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exedescription ioc process Key deleted \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{A5FFCA36-F4D1-435D-8E8E-68D7B6E0F831} regsvr32.exe Key deleted \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{A5FFCA36-F4D1-435D-8E8E-68D7B6E0F831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe -
Modifies registry class 64 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exeregsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\ = "GoSave" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\ProgID 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\ikkb3jmilmJiT4.x64.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\ProgID 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32\ = "C:\\Program Files (x86)\\GoSave\\ikkb3jmilmJiT4.dll" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A5FFCA36-F4D1-435D-8E8E-68D7B6E0F831}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640} regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5FFCA36-F4D1-435D-8E8E-68D7B6E0F831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\VersionIndependentProgID 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\Programmable 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\. 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\ = "IEPluginLib" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\..9\CLSID\ = "{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5FFCA36-F4D1-435D-8E8E-68D7B6E0F831}\Implemented Categories 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\Version = "1.0" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC} 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\Programmable 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\ProgID\ = ".9" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\InprocServer32\ThreadingModel = "Apartment" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\GoSave" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.\ = "GoSave" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.\CurVer\ = ".9" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\VersionIndependentProgID regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.\CLSID\ = "{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\GoSave\\ikkb3jmilmJiT4.tlb" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exepid process 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exedescription pid process Token: SeDebugPrivilege 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Token: SeDebugPrivilege 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Token: SeDebugPrivilege 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Token: SeDebugPrivilege 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Token: SeDebugPrivilege 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Token: SeDebugPrivilege 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exeregsvr32.exedescription pid process target process PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 1544 wrote to memory of 840 1544 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe PID 840 wrote to memory of 524 840 regsvr32.exe regsvr32.exe -
System policy modification 1 TTPs 2 IoCs
Processes:
43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{a5ffca36-f4d1-435d-8e8e-68d7b6e0f831} = "1" 43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe"C:\Users\Admin\AppData\Local\Temp\43769ba3faeef5091915e7107c0949d6e68a7962ad848bbec749f81433950fc3.exe"1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dll"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exe/s "C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dll"3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.datFilesize
4KB
MD5deddb9520c0196e957cdae0f4cb13559
SHA19669c81396a1c0b24fd4878cb4c1aace73c9e451
SHA25617169bb3e75bc0c997604f0563529db6a438fbbbbc590dfcc6a5f892700d079b
SHA5126bf83a136dbae08e064e814127c4ea6fca5634245da90738ca0b09cc8e6b0458f3c8f7ff7c4d162f630afc14ddd3e3b672662cce6fb112c2fee8ecb45559e090
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C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.tlbFilesize
3KB
MD5e3ab22d8beac0180520ab5289a64419b
SHA11456ba2c78b293e5a80185fefdf05f5dbe424937
SHA2560d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416
SHA512c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf
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C:\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dllFilesize
872KB
MD5337b97dbbcc7ad4d75fb5a90652e6de3
SHA150e50243af1819e62a7512d85e6dd67b8e1ed103
SHA256b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c
SHA512dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e
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\Program Files (x86)\GoSave\ikkb3jmilmJiT4.dllFilesize
738KB
MD549961c7c9a7aef57f49adf50d1c810f6
SHA1fc2078aeff5d5abee27c9e8a500cb2d6ae755b05
SHA256c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846
SHA5128ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f
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\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dllFilesize
872KB
MD5337b97dbbcc7ad4d75fb5a90652e6de3
SHA150e50243af1819e62a7512d85e6dd67b8e1ed103
SHA256b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c
SHA512dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e
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\Program Files (x86)\GoSave\ikkb3jmilmJiT4.x64.dllFilesize
872KB
MD5337b97dbbcc7ad4d75fb5a90652e6de3
SHA150e50243af1819e62a7512d85e6dd67b8e1ed103
SHA256b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c
SHA512dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e
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memory/524-65-0x0000000000000000-mapping.dmp
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memory/524-66-0x000007FEFBB71000-0x000007FEFBB73000-memory.dmpFilesize
8KB
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memory/840-61-0x0000000000000000-mapping.dmp
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memory/1544-54-0x0000000075681000-0x0000000075683000-memory.dmpFilesize
8KB
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memory/1544-55-0x0000000002AB0000-0x0000000002B79000-memory.dmpFilesize
804KB