Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-2004-x64

10

AsyncClient.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/09/2026, 08:12

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260905-j4b6eahj6s
  • SHA256 6d632813a06f2ffed36bbd3d861c7274c7a18e59b162708f3a7166dcbd4bb3f6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • mu88.rudrabook.in:6606

  • mu88.rudrabook.in:7707

  • mu88.rudrabook.in:8808

  • mu88.rudrabook.in:443

  • mu88.rudrabook.in:80

  • mu88.rudrabook.in:8844

  • mu88.rudrabook.in:22

  • mu88.rudrabook.in:53

Mutex

  • 4UWs9OPJ8vyg

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 1 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:3896

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/3896-0-0x0000000000380000-0x0000000000392000-memory.dmp
        Download

        memory/3896-1-0x0000000004E60000-0x0000000004E70000-memory.dmp
        Download

        memory/3896-2-0x0000000004E60000-0x0000000004E70000-memory.dmp
        Download