Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 10:20

General

  • Target
    126c367bb6898522c34b11c67fe633c6cd14351b570d4ad3c92e10d062b9b148.exe
  • Size 45KB
  • Sample260602-mdfbxscs2j
  • SHA256 126c367bb6898522c34b11c67fe633c6cd14351b570d4ad3c92e10d062b9b148
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • heosex.club:443

  • heosex.club:80

  • www.heosex.club:443

  • www.heosex.club:80

  • trickbot.heosex.club:443

  • trickbot.heosex.club:80

  • cl0p.heosex.club:443

  • cl0p.heosex.club:80

  • blaster.heosex.club:443

  • blaster.heosex.club:80

  • zbot.heosex.club:443

  • zbot.heosex.club:80

Mutex
  • n6DIjdKd3ImY

Attributes
  • delay

    0

  • install

    true

  • install_file

    5n04.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\126c367bb6898522c34b11c67fe633c6cd14351b570d4ad3c92e10d062b9b148.exe
    "C:\Users\Admin\AppData\Local\Temp\126c367bb6898522c34b11c67fe633c6cd14351b570d4ad3c92e10d062b9b148.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4028
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "5n04" /tr '"C:\Users\Admin\AppData\Roaming\5n04.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "5n04" /tr '"C:\Users\Admin\AppData\Roaming\5n04.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3400
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD2FB.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1280
      • C:\Users\Admin\AppData\Roaming\5n04.exe
        "C:\Users\Admin\AppData\Roaming\5n04.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4060
  • C:\Users\Admin\AppData\Roaming\5n04.exe
    "C:\Users\Admin\AppData\Roaming\5n04.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1936

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpD2FB.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpD2FB.tmp.bat
        • Size 148B
        • SHA256 c6548691ffc65c7580a7418aed0cffb80b404bd324c75af7437287e2cd199fda
        • MD5 SHA1 SHA512 TLSH

        5n04.exe

        • Path C:\Users\Admin\AppData\Roaming\5n04.exe
        • Size 45KB
        • SHA256 126c367bb6898522c34b11c67fe633c6cd14351b570d4ad3c92e10d062b9b148
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4028-0-0x00000000003A0000-0x00000000003B2000-memory.dmp

        memory/4028-1-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

        memory/4028-2-0x0000000004ED0000-0x0000000004F6C000-memory.dmp