861e8afcc8b73a58aae71ac4c0ed6961683d9a0d76b69d10860dab9681a4999e

Analysis

max time kernel
149s
max time network
118s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
21/04/2026, 19:35

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General

Target
~/hfdfz1.dll
Size 67KB
Sample260421-ya35csbs9p
SHA256 861e8afcc8b73a58aae71ac4c0ed6961683d9a0d76b69d10860dab9681a4999e
MD5 0ad3d53d8e3bb8815d311b83604e6547
SHA1 9beec3ba8ea309d1ca162513987d3226dbecd840
SHA512 d977525e1a7ca67a206559fb4c42ebd4b4b0c7610e3cba4da473981f8477eb0b38815fbdbf0d697d47a53ea2421101b55b4b16e84fa6eaa2dcf88158fa49d23e
SSDEEP 1536:gMS7YjYeb2+fwius1trZ5tJIgdHh364XZOBdzoKb73P:gMS7YjYebVdBJvK4XZOBfb7f
TLSH
T158632857FB4AC0B9E94581780CB6A78A5277F6E11FB045D3B288230F8E677E92D310D6
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4820	1908	WerFault.exe	79

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 3684 wrote to memory of 1908	3684	rundll32.exe	79

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\~\hfdfz1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3684
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\~\hfdfz1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1908
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 452
    3⤵
    - Program crash
    PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1908 -ip 1908
1⤵
PID:3128

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/1908-0-0x0000000000D30000-0x0000000000DEB000-memory.dmp

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