Overview
overview
3Static
static
3Microsoft....4.appx
windows10-2004-x64
Microsoft....4.appx
windows11-21h2-x64
arm64/HEVC...RE.dll
windows10-2004-x64
1arm64/HEVC...RE.dll
windows11-21h2-x64
1arm64/mfH265Enc.dll
windows10-2004-x64
1arm64/mfH265Enc.dll
windows11-21h2-x64
1arm64/msh2...re.dll
windows10-2004-x64
1arm64/msh2...re.dll
windows11-21h2-x64
1x64/HEVCDE...RE.dll
windows10-2004-x64
1x64/mfH265Enc.dll
windows10-2004-x64
1x64/msh265...re.dll
windows10-2004-x64
1x64/msh265...re.dll
windows11-21h2-x64
1x86/HEVCDE...RE.dll
windows10-2004-x64
3x86/mfH265Enc.dll
windows10-2004-x64
3x86/msh265...re.dll
windows10-2004-x64
3x86/msh265...re.dll
windows11-21h2-x64
3Microsoft....4.appx
windows10-2004-x64
Microsoft....4.appx
windows11-21h2-x64
x64/HEVCDE...RE.dll
windows10-2004-x64
1x64/mfH265Enc.dll
windows10-2004-x64
1x64/msh265...re.dll
windows10-2004-x64
1x64/msh265...re.dll
windows11-21h2-x64
1x86/HEVCDE...RE.dll
windows10-2004-x64
3x86/mfH265Enc.dll
windows10-2004-x64
3x86/msh265...re.dll
windows10-2004-x64
3x86/msh265...re.dll
windows11-21h2-x64
3Analysis
- max time kernel
149s - max time network
96s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
08/06/2026, 13:54
Static task
static1
Behavioral task
behavioral1
Sample
Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.arm64.appx
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.arm64.appx
Resource
win11-20260513-en
Behavioral task
behavioral3
Sample
arm64/HEVCDECODER_STORE.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
arm64/HEVCDECODER_STORE.dll
Resource
win11-20260513-en
Behavioral task
behavioral5
Sample
arm64/mfH265Enc.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
arm64/mfH265Enc.dll
Resource
win11-20260513-en
Behavioral task
behavioral7
Sample
arm64/msh265enchmft_store.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
arm64/msh265enchmft_store.dll
Resource
win11-20260513-en
Behavioral task
behavioral9
Sample
x64/HEVCDECODER_STORE.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
x64/mfH265Enc.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral11
Sample
x64/msh265enchmft_store.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
x64/msh265enchmft_store.dll
Resource
win11-20260513-en
Behavioral task
behavioral13
Sample
x86/HEVCDECODER_STORE.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
x86/mfH265Enc.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral15
Sample
x86/msh265enchmft_store.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
x86/msh265enchmft_store.dll
Resource
win11-20260513-en
Behavioral task
behavioral17
Sample
Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.x64.appx
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.x64.appx
Resource
win11-20260513-en
Behavioral task
behavioral19
Sample
x64/HEVCDECODER_STORE.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
x64/mfH265Enc.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral21
Sample
x64/msh265enchmft_store.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
x64/msh265enchmft_store.dll
Resource
win11-20260513-en
Behavioral task
behavioral23
Sample
x86/HEVCDECODER_STORE.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
x86/mfH265Enc.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral25
Sample
x86/msh265enchmft_store.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
x86/msh265enchmft_store.dll
Resource
win11-20260513-en
General
- Target x86/msh265enchmft_store.dll
- Size 1.8MB
- Sample260608-q7yl5sfs21
- SHA256 206d0df881a354b820e0cfe98bcac03ebbf749eecb077b2908f966bbec9256f7
- MD5 f101ef83175d9831d85c2be307b6ddc0
- SHA1 6c9b418ad9f826784365a7dd9ea1df014d7146ab
- SHA512 a786e9aecb5a560988c8c433640a3dd4fbbaf729844a81ae96e55066a0b8d897016ee0f6e96da543f07a0b678309dda9ad2c6eb9c60803fe61839d01592e3936
- SSDEEP 49152:2ifdpiDPMBiUMl33XLJbVWwT6mlccK53JB:3lCPMBiN3nzrKp
- TLSH T1EC859F21BA89C431E8DA417AC6B9AFAB993C5274133C41E793D099EC5F744E3B631B13
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3528 wrote to memory of 4784 3528 regsvr32.exe 81
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\x86\msh265enchmft_store.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3528 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\x86\msh265enchmft_store.dll2⤵
- System Location Discovery: System Language Discovery
PID:4784
-