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
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/06/2026, 16:38

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260627-t5wljsby21
  • SHA256 43a8195d571d4ec58d759f98cf427a361b5147a38232101f14fef860c6cb40a1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • chirurgiensesthetiques:6606

  • chirurgiensesthetiques:7707

  • chirurgiensesthetiques:8808

  • chirurgiensesthetiques:443

  • chirurgiensesthetiques:53

  • chirurgiensesthetiques:22

  • paris.co:6606

  • paris.co:7707

  • paris.co:8808

  • paris.co:443

  • paris.co:53

  • paris.co:22

  • hostariapiave.com:6606

  • hostariapiave.com:7707

  • hostariapiave.com:8808

  • hostariapiave.com:443

  • hostariapiave.com:53

  • hostariapiave.com:22

Mutex

  • OFWpGUWwQg4F

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 2 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:4220

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/4220-0-0x0000000074912000-0x0000000074913000-memory.dmp
        Download

        memory/4220-1-0x0000000000840000-0x0000000000852000-memory.dmp
        Download

        memory/4220-2-0x0000000074900000-0x00000000750BC000-memory.dmp
        Download

        memory/4220-3-0x0000000074912000-0x0000000074913000-memory.dmp
        Download

        memory/4220-4-0x0000000074900000-0x00000000750BC000-memory.dmp
        Download