Analysis
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max time kernel
121s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21-03-2024 19:50
Behavioral task
behavioral1
Sample
dc79a30412c7e6150bcfc38f367dc5f0.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
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Target
dc79a30412c7e6150bcfc38f367dc5f0.dll
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Size
99KB
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MD5
dc79a30412c7e6150bcfc38f367dc5f0
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SHA1
605e2822efa7eaadd98de7d962a2a42fa1a3b4d6
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SHA256
11fef5826e2a5b5f7506704bba525102c588f8e81f7fdc0f9acc803fd02c65b7
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SHA512
4c49d50af2e36d8d07bd6bf1cb998eb32aa66174d5165af5a58f20269aaa633f223f6e2f07127af02e3ee3d6e2ba2736e12b07fb431bd5f5c3d0bec2beac326a
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SSDEEP
3072:XkI0tvw3mVQRelb7bXxAU3PPKYjoDxKPm:XkhvVR7qU3nixIm
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\{58BFFA30-54EA-4CE1-A10D-5C15673D580E} regsvr32.exe -
Modifies registry class 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BFFA30-54EA-4CE1-A10D-5C15673D580E}\InprocServer32\ThreadingModel = "apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BFFA30-54EA-4CE1-A10D-5C15673D580E}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BFFA30-54EA-4CE1-A10D-5C15673D580E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{58BFFA30-54EA-4CE1-A10D-5C15673D580E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dc79a30412c7e6150bcfc38f367dc5f0.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28 PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28 PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28 PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28 PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28 PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28 PID 2144 wrote to memory of 2076 2144 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\dc79a30412c7e6150bcfc38f367dc5f0.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2144 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\dc79a30412c7e6150bcfc38f367dc5f0.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2076
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