de83c9d9203050b40c098e4143ef8f577aa90016c7a64d4f2931b57a4c43e566

Analysis

max time kernel
148s
max time network
133s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 14:11

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General

Target
ASYCFILT.dll
Size 144KB
Sample260722-rhmn1swerb
SHA256 de83c9d9203050b40c098e4143ef8f577aa90016c7a64d4f2931b57a4c43e566
MD5 c89e401800de62e5702e085d898eed20
SHA1 72fb4f088c6ac02097b55fb267c76fbf5e0fa1f7
SHA512 70006d70dcb47361ff43e4f7c458655ad2474b70cb917873aa77d2cc06465a68d375d36c494d154a03dbbff891df7dd6cab3d2c7b08e8650b9ff170e30838070
SSDEEP 3072:h+qD1Cd/Oa5kXFlqkFGr3CAP7LCyInPEggen5Ez:hlCd/OaaFEjCAPKyOE6na
TLSH
T12CE38F53BA1140F1D453127919BBEF768F39A76A027BC6B383B0E4711D21271EF3929A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

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 5844 wrote to memory of 4336	5844	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ASYCFILT.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ASYCFILT.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4336

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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