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Analysis
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max time kernel
42s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 18:24
Static task
static1
Behavioral task
behavioral1
Sample
850ce1b2516f68593307535ed87d22e86c52095a73c2fc15a3636fc0fa986728.dll
Resource
win7-20220901-en
4 signatures
150 seconds
General
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Target
850ce1b2516f68593307535ed87d22e86c52095a73c2fc15a3636fc0fa986728.dll
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Size
188KB
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MD5
ab3b43796071e04695baaa7f9ab362af
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SHA1
6ee21d21a0f85609bb687b53da5983ca0d55246d
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SHA256
850ce1b2516f68593307535ed87d22e86c52095a73c2fc15a3636fc0fa986728
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SHA512
8f318d9e4ca107c760d8d7eaa622dd949c1b4e5ad9edcfb0ef6ab0055a5a30de4beb9004e9423ae705d57f326f955b90e06bc57abdac152ca6c40ad2bb3f7167
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SSDEEP
3072:rz93GsSxgbY/SqTz6B7ntRf7vUUTkoEYcNfO:HJGpO/++N/fxTkoE9fO
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\{78364D99-A640-4ddf-B91A-67EFF8373045} regsvr32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{78364D99-A640-4ddf-B91A-67EFF8373045} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\850ce1b2516f68593307535ed87d22e86c52095a73c2fc15a3636fc0fa986728.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{78364D99-A640-4ddf-B91A-67EFF8373045}\InprocServer32\ThreadingModel = "apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 832 wrote to memory of 1260 832 regsvr32.exe 28 PID 832 wrote to memory of 1260 832 regsvr32.exe 28 PID 832 wrote to memory of 1260 832 regsvr32.exe 28 PID 832 wrote to memory of 1260 832 regsvr32.exe 28 PID 832 wrote to memory of 1260 832 regsvr32.exe 28 PID 832 wrote to memory of 1260 832 regsvr32.exe 28 PID 832 wrote to memory of 1260 832 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\850ce1b2516f68593307535ed87d22e86c52095a73c2fc15a3636fc0fa986728.dll1⤵
- Suspicious use of WriteProcessMemory
PID:832 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\850ce1b2516f68593307535ed87d22e86c52095a73c2fc15a3636fc0fa986728.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:1260
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