664cfbf8e56b044793b3d33ab2d96eb6502c5dda6b7844a8aee37302e759152a

Analysis

max time kernel
149s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/10/2026, 04:27

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General

Target
x86/HEVCDECODER_STORE.dll
Size 1.3MB
Sample261027-e3kc6sav6x
SHA256 664cfbf8e56b044793b3d33ab2d96eb6502c5dda6b7844a8aee37302e759152a
MD5 ac0c289f01c8fafe4e1091320591238d
SHA1 8e63d5227bfea7f00de47289889d6c2a95fa4dea
SHA512 d3e73af851972b79770835e5113bac0e4e769247c682fb50f922027876888171d9077ed8e0aead21789531ee0e35b5c197f3dc5aa5b30607508956905a0a098e
SSDEEP 24576:XffbUcWt+HGcDy6qXF5NMmRoABkON99GOWR1o6Zb:XbNWzc2nVZRoAN/GxjoQ
TLSH
T18D55AED1E58641B0D98AE4F4562D77FF926C46B9032044E35AC49FF9E861AC22F3C78B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2564	4304	WerFault.exe	84

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4484 wrote to memory of 4304	4484	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\x86\HEVCDECODER_STORE.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\x86\HEVCDECODER_STORE.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4304
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 764
    3⤵
    - Program crash
    PID:2564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4304 -ip 4304
1⤵
PID:2832

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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