64ef7a1414d02ac6e65a6588097b9b5ad87f12072c9fdfda20f6b49eae4bf307

Analysis

max time kernel
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/09/2026, 18:27

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General

Target
crash.dll
Size 88KB
Sample260925-w32qwstdjb
SHA256 64ef7a1414d02ac6e65a6588097b9b5ad87f12072c9fdfda20f6b49eae4bf307
MD5 db527de6ae97908ba772f4e1abbeab31
SHA1 4c8ea2bd0c13f0714b0c4b2ab9138166a2f3d13f
SHA512 4f0e47397ebed8179718010f82e8fd3cb2df41c526fb12f66980cc83f1ee07a1290cbc9c836656414ee66974993c596d63bedbb5b8924763ba7ca13e0a75a22f
SSDEEP 1536:iMoVm4jFmop00m7WR6VTTQcSEB1I5BoLbwGjrbXsw4DAv:iMoVdmoQ7WwFQjFUVrjsbDAv
TLSH
T1F4938D2167F340F2D196157624B58F3BAB7D6E10CEF28D8B8B93D8591E30992D636307
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery

Malware Config

Signatures

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32_crash.log	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
124	5628	WerFault.exe	90

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 3908 wrote to memory of 5628	3908	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\crash.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\crash.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:5628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5628 -s 812
    3⤵
    - Program crash
    PID:124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5628 -ip 5628
1⤵
PID:2872

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/5628-0-0x0000000000BE0000-0x0000000000BEF000-memory.dmp

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