ef4b0fa41f332799d656c2c0c2143de5199840811da32b12e690e24e02c044b2

Analysis

max time kernel
148s
max time network
143s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
23/07/2026, 12:22

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General

Target
StreamMemFix1.0.dll
Size 27KB
Sample260723-pkafcsck71
SHA256 ef4b0fa41f332799d656c2c0c2143de5199840811da32b12e690e24e02c044b2
MD5 f786108b7accebf37dc8c8fd25b563ff
SHA1 c9b31bee2e2b9377e319bcad247bff03db68a49a
SHA512 9149b46cc9280246b405c952b31a8140ec63a7cd094ee63e038ce3a168393538094138a5d78358b4d3269ecce570ea994d8a0448d0b23164ceeb940544708a6b
SSDEEP 384:OhvLkR7KUxJhBgxzCpFdVsYdNKhENFp7wj/TTRXMsW0vl3n1gV/gAj/hRQASAxhl:OxkpK2JhjXLsYTKhEF8R8q1sFNxsdeV
TLSH
T104C2E071BF1045FBD4C500BA358D54E86106E9FB94292AFB03A052793E6F1ECD8D9AF2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5864	3492	WerFault.exe	89

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 4924 wrote to memory of 3492	4924	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\StreamMemFix1.0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\StreamMemFix1.0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3492
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3492 -s 492
    3⤵
    - Program crash
    PID:5864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3492 -ip 3492
1⤵
PID:5340

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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