521b40bdb0b32ba33ea653b66abff72a0ee5a2f3c20c43dc7b3055c0de692d95

Analysis

max time kernel
148s
max time network
129s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
19/08/2026, 12:52

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General

Target
521b40bdb0b32ba33ea653b66abff72a0ee5a2f3c20c43dc7b3055c0de692d95.dll
Size 3.0MB
Sample260819-p33vmavbkd
SHA256 521b40bdb0b32ba33ea653b66abff72a0ee5a2f3c20c43dc7b3055c0de692d95
MD5 a102a30fb5a4a3849779769a87bdb7e5
SHA1 f47146ca9e7423ba289f15821d98592f1b65eef9
SHA512 ad177fe2b72fa8a842a3ee9a5044ca688b55dcccab91c021de104666b4d09d8cb202dba15c9fe1288effba231db4323beccac26135cad4e64423dd295b4b6778
SSDEEP 49152:Yg3eJdDJmTRf9c3F3YshhAzxeOI3u2mhdgWuNMrr5vyxLr2h9:YOVcKsh6zgQ2mhKWIMHFyZ2
TLSH
T147E57B08A501D036D9A70BF69979AF7B4928F920372650DFB1C06E657A70DD06FB323B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3544	4908	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 5872 wrote to memory of 4908	5872	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\521b40bdb0b32ba33ea653b66abff72a0ee5a2f3c20c43dc7b3055c0de692d95.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5872
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\521b40bdb0b32ba33ea653b66abff72a0ee5a2f3c20c43dc7b3055c0de692d95.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4908
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 660
    3⤵
    - Program crash
    PID:3544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4908 -ip 4908
1⤵
PID:4332

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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