Analysis

  • max time kernel
    38s
  • max time network
    40s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/10/2026, 15:47

General

  • Target
    hoiquantv3.vip.exe
  • Size 359KB
  • Sample261024-s8ea1avxex
  • SHA256 3de720910d2e51c6c22461e618b34b39a12988365520bee492ca72b67979587b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • hoiquantv3.vip:443

  • hoiquantv3.vip:80

Mutex
  • PQGvjYVKtIUB

Attributes
  • delay

    10

  • install

    true

  • install_file

    hoiquantv4.online.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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 7 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.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hoiquantv3.vip.exe
    "C:\Users\Admin\AppData\Local\Temp\hoiquantv3.vip.exe"
    1⤵
    • Checks computer location settings
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hoiquantv4.online" /tr '"C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "hoiquantv4.online" /tr '"C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4936
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD8F6.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5068
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1492
      • C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe
        "C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4676
  • C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe
    "C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe"
    1⤵
    • Executes dropped EXE
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4924

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpD8F6.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpD8F6.tmp.bat
        • Size 161B
        • SHA256 21074649d25aecab9a45002b84da43379b15d978db0c030b9b90d8facac4c78b
        • MD5 SHA1 SHA512 TLSH

        hoiquantv4.online.exe

        • Path C:\Users\Admin\AppData\Roaming\hoiquantv4.online.exe
        • Size 359KB
        • SHA256 3de720910d2e51c6c22461e618b34b39a12988365520bee492ca72b67979587b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1816-0-0x00000000003D0000-0x0000000000430000-memory.dmp

        memory/1816-1-0x0000000004DB0000-0x0000000004DC0000-memory.dmp

        memory/1816-2-0x0000000004DC0000-0x0000000004E26000-memory.dmp

        memory/1816-3-0x0000000005230000-0x00000000052CC000-memory.dmp