Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-2004-x64

10

AsyncClient.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 17:10

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260629-vpy76sb12q
  • SHA256 64c806ad0b72de354a3b2b4c06a1e035aef2608206e2e94e48bb0437d7c1a90e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • tijmenpronk.nl:6606

  • tijmenpronk.nl:7707

  • tijmenpronk.nl:8808

  • tijmenpronk.nl:443

  • tijmenpronk.nl:80

  • tijmenpronk.nl:8844

  • tijmenpronk.nl:22

  • tijmenpronk.nl:53

  • oxfordwomen.co.uk:6606

  • oxfordwomen.co.uk:7707

  • oxfordwomen.co.uk:8808

  • oxfordwomen.co.uk:443

  • oxfordwomen.co.uk:80

  • oxfordwomen.co.uk:8844

  • oxfordwomen.co.uk:22

  • oxfordwomen.co.uk:53

  • sawatdi.co.uk:6606

  • sawatdi.co.uk:7707

  • sawatdi.co.uk:8808

  • sawatdi.co.uk:443

Mutex

  • FtTRmAL1FxCo

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
    "C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • System Location Discovery: System Language Discovery
    PID:1148

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1148-0-0x0000000075032000-0x0000000075033000-memory.dmp
        Download

        memory/1148-1-0x0000000000A70000-0x0000000000A82000-memory.dmp
        Download

        memory/1148-2-0x0000000075020000-0x00000000757DC000-memory.dmp
        Download

        memory/1148-3-0x0000000075032000-0x0000000075033000-memory.dmp
        Download

        memory/1148-4-0x0000000075020000-0x00000000757DC000-memory.dmp
        Download