895a6ce7d66afb48d0347e8597c191d19514ed8f6c698555c8e0994a44c847a5

Analysis

max time kernel
133s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2024, 18:27

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General

Target
x86/HEVCDECODER_STORE.dll
Size 1.3MB
Sample241005-w37bdatejd
SHA256 71832f8583f5e36f78a0d6ac24fe22587e44344f462040794af7296741c89c54
MD5 a53f99fa01dd76d201af34238e48d67d
SHA1 243375a9d26a156cdc27c9f96639e1bcd8007e83
SHA512 2358242345cf286193660d1c04c871c55cc482a0a4b3c5b5f6b1beccbe087783022c1aa80ed0858d4c22afbd7beae6a2366e1adb4e359bf3b9deaad9df2b2c22
SSDEEP 24576:XbWYLgrl7inSX5T1jIF18m+e7ZMkOv5G3KTWaN+:Xb/gBXeqmV5OGaTWaN+
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2728	3212	WerFault.exe	85

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 3 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 3212	1704	rundll32.exe	85
PID 1704 wrote to memory of 3212	1704	rundll32.exe	85
PID 1704 wrote to memory of 3212	1704	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\x86\HEVCDECODER_STORE.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1704
- 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:3212
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3212 -s 764
    3⤵
    - Program crash
    PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3212 -ip 3212
1⤵
PID:4956

Network

MITRE ATT&CK Enterprise v15

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 v15

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