Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21-03-2024 19:18
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
dc6877ac53ff4c394e25867fa8a48786.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
dc6877ac53ff4c394e25867fa8a48786.dll
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Size
563KB
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MD5
dc6877ac53ff4c394e25867fa8a48786
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SHA1
0034dbfe7a5bf3a8b85c6f1b01d60b7227909c69
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SHA256
7d688633e2a7d3a1f92dc0b7f98696610ece6f30e739652f53cc6dd9b25db357
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SHA512
48fa8e71c76a63a3ed18b61b22b3b2aa9bc401a3deb5e8f8dc321c7b3f56bf7b49690fdbd4d8a745b50c1e9819c4f7d437dca1067af997625029aa7ce18280df
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SSDEEP
12288:M0Et9YDc/Tk4Po4wSSqodPF9C2vTgYkcLbxjvI4S:UtWDcw4o4Ts/9Ckk+Rg4
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-52D1-3646-A47A-A95EF441A248} regsvr32.exe -
Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dc6877ac53ff4c394e25867fa8a48786.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dc6877ac53ff4c394e25867fa8a48786.sh\Clsid\ = "{CC01FC6C-52D1-3646-A47A-A95EF441A248}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\dc6877ac53ff4c394e25867fa8a48786.sh\ = "sh" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dc6877ac53ff4c394e25867fa8a48786.sh\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248}\ = "sh" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\dc6877ac53ff4c394e25867fa8a48786.sh regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-52D1-3646-A47A-A95EF441A248}\ProgID\ = "dc6877ac53ff4c394e25867fa8a48786.sh" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28 PID 2196 wrote to memory of 2068 2196 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dc6877ac53ff4c394e25867fa8a48786.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dc6877ac53ff4c394e25867fa8a48786.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2068
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