895a6ce7d66afb48d0347e8597c191d19514ed8f6c698555c8e0994a44c847a5

Analysis

max time kernel
94s
max time network
142s
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

f6e59ac8cfa6a202e82e2e2dd0b130b7
SHA1

959fe005f9e5f5d912c3797e52bfff5e85648004
SHA256

ebf5cf63acf516c026b4fee5a0bd758bb43dad31ba1f48fbc4c9a3633e9c68e9
SHA512

e7a8eab638eb6819caa2391b785a252153780cf1e3c6fe8ba27d2662030f8c23eefd5250abdbc4a0057115a5292731646ff1cf29a9ba9a052890339ca189c74e
SSDEEP

24576:VbWYLgrl7inSX5T1jIF18m+e7ZMkOv5G3KTW6XpI:Vb/gBXeqmV5OGaTW6XpI

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3272	1848	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 3536 wrote to memory of 1848	3536	rundll32.exe	82
PID 3536 wrote to memory of 1848	3536	rundll32.exe	82
PID 3536 wrote to memory of 1848	3536	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:3536
- 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:1848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 764
    3⤵
    - Program crash
    PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1848 -ip 1848
1⤵
PID:3172

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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