2b5671d882704a4d82f85f4d61431674cec7a450e188e75a2ef9d5737aff904d

Analysis

max time kernel
148s
max time network
125s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260617-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
21/06/2026, 23:51

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General

Target
VET/MtsWriter.dll
Size 336KB
Sample260621-3wljnagy21
SHA256 2b5671d882704a4d82f85f4d61431674cec7a450e188e75a2ef9d5737aff904d
MD5 bb08b1f0447b923b67fa63b67728b788
SHA1 9bdf9589cdcbbdb7ceab8a92056df6c67262d9a6
SHA512 d1aec3ab61198d45bedfefae949115163f5d192c07ff97513fe9de2494b942f7b37ee16f35deafd3f179a1d8c8d2dcf236da437808bf35fd4910a330e949d5b7
SSDEEP 6144:5YsgyCKRtdKIXUpe/3JkoCsIIK2SSuVnIf+YY1PVVCzRIGhafAv//D2eO:5hRtdKKieRtu3SuVnIf+YY1PVVCzXsfq
TLSH
T15F74AE41B8C340F4D9CB16F421AFBB7B6B741F46820ECE97A358DE744923760A52B369
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2948	4164	WerFault.exe	88
6080	4164	WerFault.exe	88

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 1044 wrote to memory of 4164	1044	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\VET\MtsWriter.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\VET\MtsWriter.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4164
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 496
    3⤵
    - Program crash
    PID:2948
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 496
    3⤵
    - Program crash
    PID:6080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4164 -ip 4164
1⤵
PID:3140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4164 -ip 4164
1⤵
PID:2004

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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