Analysis

  • max time kernel
    6s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 16:24

General

  • Target
    9e8d356a12f70b670412345b04939069369490dd001c6d099b6dba7221f3d644.exe
  • Size 45KB
  • Sample260722-twj66ayelf
  • SHA256 9e8d356a12f70b670412345b04939069369490dd001c6d099b6dba7221f3d644
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • phimsexvietnamhd.net:80

  • phimsexvietnamhd.net:22

  • phimsexvietnamhd.net:8080

  • phimsexvietnamhd.net:8880

  • phimsexvietnamhd.net:2052

  • phimsexvietnamhd.net:2082

  • phimsexvietnamhd.net:2086

  • phimsexvietnamhd.net:2095

  • phimsexvietnamhd.net:443

  • phimsexvietnamhd.net:2053

  • phimsexvietnamhd.net:2083

  • phimsexvietnamhd.net:2087

  • phimsexvietnamhd.net:2096

  • phimsexvietnamhd.net:8443

  • www.phimsexvietnamhd.net:80

  • www.phimsexvietnamhd.net:22

  • www.phimsexvietnamhd.net:8080

  • www.phimsexvietnamhd.net:8880

  • www.phimsexvietnamhd.net:2052

  • www.phimsexvietnamhd.net:2082

Mutex
  • psNlwbVNhW8U

Attributes
  • delay

    0

  • install

    true

  • install_file

    tsih6t4.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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e8d356a12f70b670412345b04939069369490dd001c6d099b6dba7221f3d644.exe
    "C:\Users\Admin\AppData\Local\Temp\9e8d356a12f70b670412345b04939069369490dd001c6d099b6dba7221f3d644.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5864
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "tsih6t4" /tr '"C:\Users\Admin\AppData\Roaming\tsih6t4.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5612
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "tsih6t4" /tr '"C:\Users\Admin\AppData\Roaming\tsih6t4.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1544
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCA7A.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1968
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4128
      • C:\Users\Admin\AppData\Roaming\tsih6t4.exe
        "C:\Users\Admin\AppData\Roaming\tsih6t4.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1972
  • C:\Users\Admin\AppData\Roaming\tsih6t4.exe
    "C:\Users\Admin\AppData\Roaming\tsih6t4.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3764

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpCA7A.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpCA7A.tmp.bat
        • Size 151B
        • SHA256 4441ee79e76092a5ee44e06c816975db3f686665b2d9fae28f07d12f5182cdeb
        • MD5 SHA1 SHA512 TLSH

        tsih6t4.exe

        • Path C:\Users\Admin\AppData\Roaming\tsih6t4.exe
        • Size 45KB
        • SHA256 9e8d356a12f70b670412345b04939069369490dd001c6d099b6dba7221f3d644
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3764-12-0x00000000747B0000-0x0000000074F6C000-memory.dmp

        memory/3764-14-0x00000000747B0000-0x0000000074F6C000-memory.dmp

        memory/5864-0-0x00000000747C2000-0x00000000747C3000-memory.dmp

        memory/5864-1-0x0000000000FD0000-0x0000000000FE2000-memory.dmp

        memory/5864-2-0x00000000747B0000-0x0000000074F6C000-memory.dmp

        memory/5864-3-0x00000000059E0000-0x0000000005A7C000-memory.dmp

        memory/5864-9-0x00000000747B0000-0x0000000074F6C000-memory.dmp