Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-2004-x64

10

AsyncClient.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/05/2026, 18:13

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260516-wt38csbw4p
  • SHA256 7531e4441e9dd3ba6ea06a137f00981cba3c5e1e58ce4f2e10a63c58d13241d4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • kalichain.io:6606

  • kalichain.io:7707

  • kalichain.io:8808

  • kalichain.io:443

  • kalichain.io:80

  • kalichain.io:8844

  • kalichain.io:22

  • kalichain.io:53

  • metehan.us:6606

  • metehan.us:7707

  • metehan.us:8808

  • metehan.us:443

  • metehan.us:80

  • metehan.us:8844

  • metehan.us:22

  • metehan.us:53

  • froxy.io:6606

  • froxy.io:7707

  • froxy.io:8808

  • froxy.io: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
  • 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5252

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/5252-0-0x00000000004E0000-0x00000000004F2000-memory.dmp
        Download

        memory/5252-1-0x0000000004ED0000-0x0000000004EE0000-memory.dmp
        Download

        memory/5252-2-0x0000000004ED0000-0x0000000004EE0000-memory.dmp
        Download