Analysis
- max time kernel
157s - max time network
165s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
27/03/2024, 15:42
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
e20650d8d30ae23b7ec7613f1527cdaf.dll
Resource
win7-20240220-en
3 signatures
150 seconds
General
- Target e20650d8d30ae23b7ec7613f1527cdaf.dll
- Size 565KB
- Sample240327-s5pybsae8z
- SHA256 a1498829cd0b58e1e0244e39101b9d0f57bdda3373991d8d0cadaf0b5acd69e5
- MD5 e20650d8d30ae23b7ec7613f1527cdaf
- SHA1 8ad189ea515c77b57d8a72b8bf1dfeb41390e7c1
- SHA512 0f93a5f3dda614332a1d884b5b8018b4fc33e9cccf6c90576868b437f603f3afb13553dfc17924668aa2944f8454f24e5b809a2ae9ce79eec2d448ea79e60ea8
- SSDEEP 12288:1yA1ZdqVfv/6HftOIA3+00wstpSdCi3TLdLOG0ZZklIVBwv:V1fqZCHwIr00taCiHpIZZMI
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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-7982-1865-B343-77B8667E5564} regsvr32.exe - Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e20650d8d30ae23b7ec7613f1527cdaf.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\e20650d8d30ae23b7ec7613f1527cdaf.xx\Clsid regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564}\ProgID\ = "e20650d8d30ae23b7ec7613f1527cdaf.xx" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564}\ = "xx" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\e20650d8d30ae23b7ec7613f1527cdaf.xx\ = "xx" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\e20650d8d30ae23b7ec7613f1527cdaf.xx\Clsid\ = "{CC01FC6C-7982-1865-B343-77B8667E5564}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-7982-1865-B343-77B8667E5564}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\e20650d8d30ae23b7ec7613f1527cdaf.xx regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 540 wrote to memory of 2404 540 regsvr32.exe 88 PID 540 wrote to memory of 2404 540 regsvr32.exe 88 PID 540 wrote to memory of 2404 540 regsvr32.exe 88
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\e20650d8d30ae23b7ec7613f1527cdaf.dll1⤵
- Suspicious use of WriteProcessMemory
PID:540 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\e20650d8d30ae23b7ec7613f1527cdaf.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2404
-