e512fe71775f767285cfb3310d8f1ac042639ab3d1a02ca3675b82cfd3cbc702

Analysis

max time kernel
149s
max time network
159s
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, 03:18

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General

Target
avcodec-51.dll
Size 4.2MB
Sample260805-dtmlhaxclg
SHA256 e512fe71775f767285cfb3310d8f1ac042639ab3d1a02ca3675b82cfd3cbc702
MD5 b66478cc0f9ec50810489a039ced642b
SHA1 992ede70f0fee5cb323b4b810cc960bf2531875e
SHA512 ed07e71fd6bc2bd9f2ada8b8d6aa80662d6ffadce7d692f078e9ccd8ada2ba47b0e25967809f567fb93ffc96271037f010a0038bb78301812a75e30eee9b2645
SSDEEP 98304:UyIwuFFZZqniDGDHt+elelHjzMvIOFXEkGP0P7g+r0ZpSHA23yQ7D9cpTZY:UyIwuFFZZqniDGDHt+elelHjzMvIOFN1
TLSH
T11C265C85F6A380F6D8470C71902FF37F96392A08C525DFA5EFC02F59F9A2B529856306
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3884	3408	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 4980 wrote to memory of 3408	4980	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-51.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-51.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3408
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3408 -s 612
    3⤵
    - Program crash
    PID:3884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3408 -ip 3408
1⤵
PID:728

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

Replay Monitor

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Downloads

memory/3408-0-0x000000006BB40000-0x000000006C219000-memory.dmp

Download

memory/3408-2-0x0000000063D00000-0x0000000063D19000-memory.dmp