Analysis

  • max time kernel
    58s
  • max time network
    59s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    08/06/2026, 19:24

General

  • Target
    ae4d4574c3448241975b008fa4d8fba6359968cdb59284e20f96e5c958987aee.exe
  • Size 45KB
  • Sample260608-x4llqset5x
  • SHA256 ae4d4574c3448241975b008fa4d8fba6359968cdb59284e20f96e5c958987aee
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • bonvoyage.com.co:443

  • bonvoyage.com.co:8443

  • bonvoyage.com.co:25

  • bonvoyage.com.co:80

Mutex
  • ZesYM1UeghHj

Attributes
  • delay

    3

  • install

    true

  • install_file

    bonvoyage.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 dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae4d4574c3448241975b008fa4d8fba6359968cdb59284e20f96e5c958987aee.exe
    "C:\Users\Admin\AppData\Local\Temp\ae4d4574c3448241975b008fa4d8fba6359968cdb59284e20f96e5c958987aee.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4504
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "bonvoyage" /tr '"C:\Users\Admin\AppData\Roaming\bonvoyage.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2348
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "bonvoyage" /tr '"C:\Users\Admin\AppData\Roaming\bonvoyage.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1804
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp14AC.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4848
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3972
      • C:\Users\Admin\AppData\Roaming\bonvoyage.exe
        "C:\Users\Admin\AppData\Roaming\bonvoyage.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:844
  • C:\Users\Admin\AppData\Roaming\bonvoyage.exe
    "C:\Users\Admin\AppData\Roaming\bonvoyage.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:956

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp14AC.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp14AC.tmp.bat
        • Size 153B
        • SHA256 fa6d530a2055e0214219c4f07c723d84582b0e2f5a3cf6f6fbd43c1839333683
        • MD5 SHA1 SHA512 TLSH

        bonvoyage.exe

        • Path C:\Users\Admin\AppData\Roaming\bonvoyage.exe
        • Size 45KB
        • SHA256 ae4d4574c3448241975b008fa4d8fba6359968cdb59284e20f96e5c958987aee
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4504-0-0x0000000000250000-0x0000000000262000-memory.dmp

        memory/4504-1-0x0000000004C90000-0x0000000004CA0000-memory.dmp

        memory/4504-2-0x0000000004D40000-0x0000000004DDC000-memory.dmp