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
    122s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/05/2026, 04:08

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General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260502-eqjacacy8p
  • SHA256 73a2bb46412395367dee3497b990ef6ee07f340aaf3e0cb0e65990d58eec12db
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • bj88indo.net/register:6606

  • bj88indo.net/register:7707

  • bj88indo.net/register:8808

  • bj88indo.net/register:443

  • bj88indo.net/register:80

  • bj88indo.net/register:22

  • bj88indo.net/register:53

  • bj88indo.net/vn/vn:6606

  • bj88indo.net/vn/vn:7707

  • bj88indo.net/vn/vn:8808

  • bj88indo.net/vn/vn:443

  • bj88indo.net/vn/vn:80

  • bj88indo.net/vn/vn:22

  • bj88indo.net/vn/vn:53

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
    "C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4288

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/4288-0-0x00000000005E0000-0x00000000005F2000-memory.dmp
        Download

        memory/4288-1-0x0000000005120000-0x0000000005130000-memory.dmp
        Download

        memory/4288-2-0x0000000004FC0000-0x000000000505C000-memory.dmp
        Download

        memory/4288-3-0x0000000005120000-0x0000000005130000-memory.dmp
        Download