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Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31/12/2023, 05:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
29ae3ac9e78b909c4d41585f867f9e52.dll
Resource
win7-20231215-en
3 signatures
150 seconds
General
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Target
29ae3ac9e78b909c4d41585f867f9e52.dll
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Size
564KB
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MD5
29ae3ac9e78b909c4d41585f867f9e52
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SHA1
0f390c02e64657a2d402e1694f597e76ea5bb40f
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SHA256
06fc6c1bab824512c694f8da3676c734290fa5afac309911dae7891023286320
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SHA512
7439f2afb0ecb05bdb6575fa5bbf23227d79b9eed291e8638d695cf40cd9cb79cd52e9750826d674920fa94d2ffc554ba4b303d134e5a03c41486c8163f2f208
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SSDEEP
12288:zVhi9MR3BV71yfNdSQZDZuFQVIioiRphGFnQuamTl2n5I4S63:+UV7gfDSQSKVbRwUm6BS63
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\{3E1BEA96-02D9-4992-B508-9B51819D9D86} regsvr32.exe -
Modifies registry class 27 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\ = "DosSpecFolder Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\AppID regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\InprocServer32\ThreadingModel = "apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder.1 regsvr32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\VersionIndependentProgID\ = "DosSpecFolder.DosSpecFolder" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\ProgID\ = "DosSpecFolder.DosSpecFolder.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder\ = "DosSpecFolder Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\TypeLib\ = "{BAD59A24-6891-417D-A041-C8FD495B77F1}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\29ae3ac9e78b909c4d41585f867f9e52.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder\CurVer\ = "DosSpecFolder.DosSpecFolder.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder.1\ = "DosSpecFolder Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder\CLSID\ = "{3E1BEA96-02D9-4992-B508-9B51819D9D86}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E1BEA96-02D9-4992-B508-9B51819D9D86}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\DosSpecFolder.DosSpecFolder.1\CLSID\ = "{3E1BEA96-02D9-4992-B508-9B51819D9D86}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16 PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16 PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16 PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16 PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16 PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16 PID 1716 wrote to memory of 2516 1716 regsvr32.exe 16
Processes
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\29ae3ac9e78b909c4d41585f867f9e52.dll1⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2516
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\29ae3ac9e78b909c4d41585f867f9e52.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1716