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
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/06/2026, 18:34

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260623-w71z6aft6m
  • SHA256 317b373daafd1b597167ac50667673e4ea99e847458f3dc33390ce0e0b3d0da8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • gamemag.info:6606

  • gamemag.info:7707

  • gamemag.info:8808

  • gamemag.info:443

  • gamemag.info:80

  • gamemag.info:8844

  • gamemag.info:22

  • gamemag.info:53

  • 123b-jp.com:6606

  • 123b-jp.com:7707

  • 123b-jp.com:8808

  • 123b-jp.com:443

  • 123b-jp.com:80

  • 123b-jp.com:8844

  • 123b-jp.com:22

  • 123b-jp.com:53

  • 123b-vn1.com:6606

  • 123b-vn1.com:7707

  • 123b-vn1.com:8808

  • 123b-vn1.com: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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

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
    • Suspicious use of AdjustPrivilegeToken
    PID:5864

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/5864-0-0x0000000074E92000-0x0000000074E93000-memory.dmp
        Download

        memory/5864-1-0x0000000000A60000-0x0000000000A72000-memory.dmp
        Download

        memory/5864-2-0x0000000074E80000-0x000000007563C000-memory.dmp
        Download

        memory/5864-3-0x0000000074E92000-0x0000000074E93000-memory.dmp
        Download

        memory/5864-4-0x0000000074E80000-0x000000007563C000-memory.dmp
        Download