Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 15:47

General

  • Target
    a028e83780590d88d470a5ab854e717b36cac1b8751ea597842ef0287c13d984.exe
  • Size 45KB
  • Sample260710-s8bj4sct7j
  • SHA256 a028e83780590d88d470a5ab854e717b36cac1b8751ea597842ef0287c13d984
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • porn-th.com:80

  • porn-th.com:22

  • porn-th.com:8080

  • porn-th.com:8880

  • porn-th.com:2052

  • porn-th.com:2082

  • porn-th.com:2086

  • porn-th.com:2095

  • porn-th.com:443

  • porn-th.com:2053

  • porn-th.com:2083

  • porn-th.com:2087

  • porn-th.com:2096

  • porn-th.com:8443

  • www.porn-th.com:80

  • www.porn-th.com:22

  • www.porn-th.com:8080

  • www.porn-th.com:8880

  • www.porn-th.com:2052

  • www.porn-th.com:2082

Mutex
  • rICXU7Qc8NUl

Attributes
  • delay

    0

  • install

    true

  • install_file

    fnt8nsmm.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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a028e83780590d88d470a5ab854e717b36cac1b8751ea597842ef0287c13d984.exe
    "C:\Users\Admin\AppData\Local\Temp\a028e83780590d88d470a5ab854e717b36cac1b8751ea597842ef0287c13d984.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fnt8nsmm" /tr '"C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "fnt8nsmm" /tr '"C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4164
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFCF9.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1200
      • C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe
        "C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1716
  • C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe
    "C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1728

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpFCF9.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpFCF9.tmp.bat
        • Size 152B
        • SHA256 981226d69916c6a91d55c9b3561984886ae427645973f580bb0024e09170a406
        • MD5 SHA1 SHA512 TLSH

        fnt8nsmm.exe

        • Path C:\Users\Admin\AppData\Roaming\fnt8nsmm.exe
        • Size 45KB
        • SHA256 a028e83780590d88d470a5ab854e717b36cac1b8751ea597842ef0287c13d984
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1728-12-0x0000000075060000-0x000000007581C000-memory.dmp

        memory/1728-14-0x0000000075060000-0x000000007581C000-memory.dmp

        memory/3284-0-0x00000000751E2000-0x00000000751E3000-memory.dmp

        memory/3284-1-0x00000000000F0000-0x0000000000102000-memory.dmp

        memory/3284-2-0x00000000751D0000-0x000000007598C000-memory.dmp

        memory/3284-3-0x0000000004C50000-0x0000000004CEC000-memory.dmp

        memory/3284-8-0x00000000751D0000-0x000000007598C000-memory.dmp