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
119s - 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 961965609190fec947905c374f7a5a8e4e11e9784aee3ef6f63f233833f0f18b
- MD5 b1bdff2c1970692a66754b9403fccc27
- SHA1 c0a7b3b246f1fe6850f2ac7afbc5cddd734d7b64
- SHA512 98b901d953f6d1f634e164dee0c94a7a8ca275dce1458bae930a60d0030747875df1852ae7b5f46f0e0a7dafd2807350e8d12be6de35cebaf0655b0c1fbe8148
- SSDEEP 49152:IifdpiDPMBiUMl33XLJbVWwT6mlccK53J0:BlCPMBiN3nzrK8
- TLSH T1E6859E21BA89C431E8DA417AC6B9AFAB993C5274033C51E793D099EC5F744E3B631B13
- 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 2744 wrote to memory of 5252 2744 regsvr32.exe 80
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\x86\msh265enchmft_store.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\x86\msh265enchmft_store.dll2⤵
- System Location Discovery: System Language Discovery
PID:5252
-