647da18b39629dc9c5fd37ed4145a5d4033da8d40decf0e45c9e139d483ddf62

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
05/08/2026, 01:06

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General

Target
avutil-58.dll
Size 812KB
Sample260805-bf7neabd52
SHA256 647da18b39629dc9c5fd37ed4145a5d4033da8d40decf0e45c9e139d483ddf62
MD5 ad60f48b2b4a04927d04d229fa2295b4
SHA1 90f0bd40c8b40eba6d45d4a83a684f89f2959705
SHA512 7da2bc2efad15c0e27f8a4be783145bc484b96431e2c02f5aa958889c2f5f5118441ee38be6f0e1b424cbe0c1460e925f73dbeb4bc6d42c5eed8649e4e8c7243
SSDEEP 24576:P130plybxCRQNJHv9yFaevXCK3bqBYhj/3:t3IOxCrFbvbqBQ/3
TLSH
T1BE05AF40F6D385F1E49D243632ABB67BAA3532150B2DEAF3E7D45D29AC302D05CB7285
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2608	2628	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 5116 wrote to memory of 2628	5116	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avutil-58.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\avutil-58.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 600
    3⤵
    - Program crash
    PID:2608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2628 -ip 2628
1⤵
PID:2708

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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