Analysis

  • max time kernel
    60s
  • max time network
    63s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 19:32

General

  • Target
    fd27f2861fd527a054e8a8335506be10e3934837cdcedd6f7e8a777ab4557772.exe
  • Size 72KB
  • Sample261026-x9eqdaf16w
  • SHA256 fd27f2861fd527a054e8a8335506be10e3934837cdcedd6f7e8a777ab4557772
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • hoiquantv4.site:6606

  • hoiquantv4.site:7707

  • hoiquantv4.site:8808

  • hoiquantv4.site:443

  • hoiquantv4.site:80

Mutex
  • FdxMx92JcH9F

Attributes
  • delay

    10

  • install

    true

  • install_file

    hoiquantv4.site.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • Async RAT payload 1 IoCs
  • 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.

  • 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.

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd27f2861fd527a054e8a8335506be10e3934837cdcedd6f7e8a777ab4557772.exe
    "C:\Users\Admin\AppData\Local\Temp\fd27f2861fd527a054e8a8335506be10e3934837cdcedd6f7e8a777ab4557772.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4788
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hoiquantv4.site" /tr '"C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      PID:2560
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "hoiquantv4.site" /tr '"C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5524
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4A6D.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      PID:4224
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:5220
      • C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe
        "C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe"
        3⤵
          PID:4240
    • C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe
      "C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe"
      1⤵
        PID:2596

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            tmp4A6D.tmp.bat

            • Path C:\Users\Admin\AppData\Local\Temp\tmp4A6D.tmp.bat
            • Size 159B
            • SHA256 4fcfdd81ace46006d12e401ab5db052cff4a70e750089557a7a02e845726731b
            • MD5 SHA1 SHA512 TLSH

            hoiquantv4.site.exe

            • Path C:\Users\Admin\AppData\Roaming\hoiquantv4.site.exe
            • Size 72KB
            • SHA256 fd27f2861fd527a054e8a8335506be10e3934837cdcedd6f7e8a777ab4557772
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2596-14-0x0000000074B90000-0x000000007534C000-memory.dmp

            memory/2596-16-0x0000000074B90000-0x000000007534C000-memory.dmp

            memory/4788-0-0x0000000074D12000-0x0000000074D13000-memory.dmp

            memory/4788-1-0x0000000000D40000-0x0000000000D58000-memory.dmp

            memory/4788-2-0x0000000074D12000-0x0000000074D13000-memory.dmp

            memory/4788-3-0x0000000074D00000-0x00000000754BC000-memory.dmp

            memory/4788-4-0x0000000005840000-0x00000000058A6000-memory.dmp

            memory/4788-5-0x0000000005CD0000-0x0000000005D6C000-memory.dmp

            memory/4788-10-0x0000000074D00000-0x00000000754BC000-memory.dmp