Analysis

  • max time kernel
    60s
  • max time network
    59s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 19:29

General

  • Target
    fd9f2b2d476df5a6580dcd99341e52d8e693bd48d6ef3707124f6a3830db29ef.exe
  • Size 45KB
  • Sample260805-x69fkseq8x
  • SHA256 fd9f2b2d476df5a6580dcd99341e52d8e693bd48d6ef3707124f6a3830db29ef
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • hentaihay.blog:80

  • hentaihay.blog:22

  • hentaihay.blog:8080

  • hentaihay.blog:8880

  • hentaihay.blog:2052

  • hentaihay.blog:2082

  • hentaihay.blog:2086

  • hentaihay.blog:2095

  • hentaihay.blog:443

  • hentaihay.blog:2053

  • hentaihay.blog:2083

  • hentaihay.blog:2087

  • hentaihay.blog:2096

  • hentaihay.blog:8443

  • www.hentaihay.blog:80

  • www.hentaihay.blog:22

  • www.hentaihay.blog:8080

  • www.hentaihay.blog:8880

  • www.hentaihay.blog:2052

  • www.hentaihay.blog:2082

Mutex
  • KlmwI0P2UK3V

Attributes
  • delay

    0

  • install

    true

  • install_file

    1c9bkma.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 1 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 6 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 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd9f2b2d476df5a6580dcd99341e52d8e693bd48d6ef3707124f6a3830db29ef.exe
    "C:\Users\Admin\AppData\Local\Temp\fd9f2b2d476df5a6580dcd99341e52d8e693bd48d6ef3707124f6a3830db29ef.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "1c9bkma" /tr '"C:\Users\Admin\AppData\Roaming\1c9bkma.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "1c9bkma" /tr '"C:\Users\Admin\AppData\Roaming\1c9bkma.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5936
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6A49.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5740
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5996
      • C:\Users\Admin\AppData\Roaming\1c9bkma.exe
        "C:\Users\Admin\AppData\Roaming\1c9bkma.exe"
        3⤵
          PID:3484
    • C:\Users\Admin\AppData\Roaming\1c9bkma.exe
      "C:\Users\Admin\AppData\Roaming\1c9bkma.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1760

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp6A49.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmp6A49.tmp.bat
          • Size 151B
          • SHA256 ee8f4d8f8078f2167978754d9daf103c6d564d72bf35d04662d75a4abaa88b02
          • MD5 SHA1 SHA512 TLSH

          1c9bkma.exe

          • Path C:\Users\Admin\AppData\Roaming\1c9bkma.exe
          • Size 45KB
          • SHA256 fd9f2b2d476df5a6580dcd99341e52d8e693bd48d6ef3707124f6a3830db29ef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1760-12-0x0000000074830000-0x0000000074FEC000-memory.dmp

          memory/1760-14-0x0000000074830000-0x0000000074FEC000-memory.dmp

          memory/3032-0-0x0000000074A02000-0x0000000074A03000-memory.dmp

          memory/3032-1-0x0000000000750000-0x0000000000762000-memory.dmp

          memory/3032-2-0x00000000749F0000-0x00000000751AC000-memory.dmp

          memory/3032-3-0x0000000005210000-0x00000000052AC000-memory.dmp

          memory/3032-8-0x00000000749F0000-0x00000000751AC000-memory.dmp