Analysis
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max time kernel
118s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
04/02/2024, 17:57
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
8fc9c8b8023d87ef168753346bc69093.dll
Resource
win7-20231215-en
3 signatures
150 seconds
General
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Target
8fc9c8b8023d87ef168753346bc69093.dll
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Size
607KB
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MD5
8fc9c8b8023d87ef168753346bc69093
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SHA1
5bdbe9756280ffe02fa82f989af0146ed8730c93
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SHA256
a8bd5abeab9c337ee4aa8f0b47f073838bd7a7e37ca0a57b87a0daa63e610a86
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SHA512
244d40ee80f52c540834a1d6ba20512ceef2be7f47134717d81095b62d61aabbaec2ea5eb15273c675c5dda7a84b31d46dcfa04d62ff4044a51777ec3d7aa240
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SSDEEP
12288:ipIt9HX65cspWkY5DARyLuaIg3QaomrdnsLm0X/:ietFXsoB7LGnaomr6m0X
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\{CC01FC6C-C646-316D-3AAD-4C8D7B443532} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ProgID\ = "8fc9c8b8023d87ef168753346bc69093.iwc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8fc9c8b8023d87ef168753346bc69093.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\Clsid\ = "{CC01FC6C-C646-316D-3AAD-4C8D7B443532}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ = "iwc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\ = "iwc" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28 PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28 PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28 PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28 PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28 PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28 PID 2340 wrote to memory of 2916 2340 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\8fc9c8b8023d87ef168753346bc69093.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2340 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\8fc9c8b8023d87ef168753346bc69093.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2916
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