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
    109s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 14:29

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260710-rtspeabs5n
  • SHA256 4afbb9c2336bc83a01536c0baa712e159692513694dcfd720b184e603da54b60
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • bj88indo.net/vn/vn/terms/about:6606

  • bj88indo.net/vn/vn/terms/about:7707

  • bj88indo.net/vn/vn/terms/about:8808

  • bj88indo.net/vn/vn/terms/about:443

  • bj88indo.net/vn/vn/terms/about:80

  • bj88indo.net/vn/vn/terms/about:8844

  • bj88indo.net/vn/vn/terms/about:22

  • bj88indo.net/vn/vn/terms/about:53

  • bj88indo.net/vn/vn/terms/age-18-above:6606

  • bj88indo.net/vn/vn/terms/age-18-above:7707

  • bj88indo.net/vn/vn/terms/age-18-above:8808

  • bj88indo.net/vn/vn/terms/age-18-above:443

  • bj88indo.net/vn/vn/terms/age-18-above:80

  • bj88indo.net/vn/vn/terms/age-18-above:8844

  • bj88indo.net/vn/vn/terms/age-18-above:22

  • bj88indo.net/vn/vn/terms/age-18-above:53

Mutex

  • ULeu2PdkJsgx

Attributes
  • delay

    9

  • 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 2 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:3536

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3536-0-0x0000000074D62000-0x0000000074D63000-memory.dmp
        Download

        memory/3536-1-0x00000000008E0000-0x00000000008F2000-memory.dmp
        Download

        memory/3536-2-0x0000000074D62000-0x0000000074D63000-memory.dmp
        Download

        memory/3536-3-0x0000000074D50000-0x000000007550C000-memory.dmp
        Download

        memory/3536-4-0x0000000074D50000-0x000000007550C000-memory.dmp
        Download