Overview

overview

10

Static

static

10

AsyncClient.exe

windows10-2004-x64

10

AsyncClient.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    40s
  • max time network
    38s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 00:59

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General

  • Target
    AsyncClient.exe
  • Size 82KB
  • Sample261023-bcajhavzhy
  • SHA256 95fc0ee2c4b9f1bda8b21a51541d16d27bdc27357cbffb7e13023213f15773c9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • Hoiquantv5.online:6606

  • Hoiquantv5.online:7707

  • Hoiquantv5.online:8808

  • Hoiquantv5.online:443

  • Hoiquantv5.online:80

Mutex

  • UlDVfT2peqY8

Attributes
  • delay

    3

  • install

    true

  • install_file

    Hoiquantv5.online.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • 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
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution

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:4176
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Hoiquantv5.online" /tr '"C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      PID:3508
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Hoiquantv5.online" /tr '"C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4464
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4387.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      PID:3108
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:6068
      • C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe
        "C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe"
        3⤵
          PID:4260
    • C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe
      "C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe"
      1⤵
        PID:4844

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            tmp4387.tmp.bat
            • Path C:\Users\Admin\AppData\Local\Temp\tmp4387.tmp.bat
            • Size 161B
            • SHA256 efae5c7deeef98e8bd78c472fcfed3557f3e8060294ad6939abe068f42803bab
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            Hoiquantv5.online.exe
            • Path C:\Users\Admin\AppData\Roaming\Hoiquantv5.online.exe
            • Size 82KB
            • SHA256 95fc0ee2c4b9f1bda8b21a51541d16d27bdc27357cbffb7e13023213f15773c9
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/4176-0-0x0000000074D12000-0x0000000074D13000-memory.dmp
            Download

            memory/4176-1-0x00000000002A0000-0x00000000002BA000-memory.dmp
            Download

            memory/4176-2-0x0000000074D00000-0x00000000754BC000-memory.dmp
            Download

            memory/4176-3-0x0000000004E00000-0x0000000004E9C000-memory.dmp
            Download

            memory/4176-9-0x0000000074D00000-0x00000000754BC000-memory.dmp
            Download

            memory/4844-12-0x0000000074D00000-0x00000000754BC000-memory.dmp
            Download

            memory/4844-14-0x0000000074D00000-0x00000000754BC000-memory.dmp
            Download