895a6ce7d66afb48d0347e8597c191d19514ed8f6c698555c8e0994a44c847a5

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-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
MD5

331a01db099e1221b49451d52d57fa6c
SHA1

4223a528252a388593f5ff0c68a744abf8ccee66
SHA256

75ef3076acf7f987fee558632b6617a932d998cc30e42b21ced5ab9db3a30fbd
SHA512

7b5c7db1188be79915c8b768d498d902b3c77d25a10964fcfcc6ee4631992cca21c58183f212fdd1bf8c1b713a9b907ff2d289577ab0ac4fcda85d898ca8f859
SSDEEP

24576:AbWYLgrl7inSX5T1jIF18m+e7ZMkOv5G3KTWz3oF:Ab/gBXeqmV5OGaTWz3oF

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1340	3244	WerFault.exe	82

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 2224 wrote to memory of 3244	2224	rundll32.exe	82
PID 2224 wrote to memory of 3244	2224	rundll32.exe	82
PID 2224 wrote to memory of 3244	2224	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\x86\HEVCDECODER_STORE.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2224
- 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:3244
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 764
    3⤵
    - Program crash
    PID:1340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3244 -ip 3244
1⤵
PID:4224

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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