4f8dc460162407cfccb1be6ef9cce45c4449de838aeffa3fd33378f01a3f9cc4

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
14/10/2026, 22:52

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General

Target
MEIPreload/Qt5Core.dll
Size 5.1MB
Sample261014-2tesnatwcx
SHA256 4f8dc460162407cfccb1be6ef9cce45c4449de838aeffa3fd33378f01a3f9cc4
MD5 7d180286e9c071c7bc3a6bc2ace792ac
SHA1 f5947d69aeaacc8a378721f3750b049cc41dddef
SHA512 9b30d5dd48e736da770e71622b79da294829621565cfc4d995ca31c8cfbbbe2d577677f4240e0ff2d995deeeb5f894018412596c141e8360dd77bf12596ce167
SSDEEP 49152:q1AH+7g4QrRpvOK8Bbl+Gy+/LZsxRFNHlZTlJsv6tWKFdu9C/cPk4VHEYI9CV4eO:E5gje5lCjzJsv6tWKFdu9CtvDhgwcY
TLSH
T18746AFA17B57857AE5A2D270C8BA632F0539AD124B1385C7D39C370A4A746E23F3B707
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4008	5048	WerFault.exe	87

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 3944 wrote to memory of 5048	3944	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MEIPreload\Qt5Core.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\MEIPreload\Qt5Core.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5048
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 684
    3⤵
    - Program crash
    PID:4008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5048 -ip 5048
1⤵
PID:1524

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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