Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 15:20

General

  • Target
    7de21e925f8f87e59c29335e18f58b613faa83dc7a333a09944a700607e87e37.exe
  • Size 45KB
  • Sample260804-sq5p8scg76
  • SHA256 7de21e925f8f87e59c29335e18f58b613faa83dc7a333a09944a700607e87e37
  • 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
  • G00ccUI2YP02

Attributes
  • delay

    0

  • install

    true

  • install_file

    yz3fck.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 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7de21e925f8f87e59c29335e18f58b613faa83dc7a333a09944a700607e87e37.exe
    "C:\Users\Admin\AppData\Local\Temp\7de21e925f8f87e59c29335e18f58b613faa83dc7a333a09944a700607e87e37.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "yz3fck" /tr '"C:\Users\Admin\AppData\Roaming\yz3fck.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "yz3fck" /tr '"C:\Users\Admin\AppData\Roaming\yz3fck.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5312
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE7B6.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5128
      • C:\Users\Admin\AppData\Roaming\yz3fck.exe
        "C:\Users\Admin\AppData\Roaming\yz3fck.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4592
  • C:\Users\Admin\AppData\Roaming\yz3fck.exe
    "C:\Users\Admin\AppData\Roaming\yz3fck.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4432

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpE7B6.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpE7B6.tmp.bat
        • Size 150B
        • SHA256 1b90208f87321f80db171c4573926f2908763ba68daf905572dceddeb6933f77
        • MD5 SHA1 SHA512 TLSH

        yz3fck.exe

        • Path C:\Users\Admin\AppData\Roaming\yz3fck.exe
        • Size 45KB
        • SHA256 7de21e925f8f87e59c29335e18f58b613faa83dc7a333a09944a700607e87e37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4432-12-0x0000000075030000-0x00000000757EC000-memory.dmp

        memory/4432-14-0x0000000075030000-0x00000000757EC000-memory.dmp

        memory/4676-0-0x0000000075052000-0x0000000075053000-memory.dmp

        memory/4676-1-0x0000000000C30000-0x0000000000C42000-memory.dmp

        memory/4676-2-0x0000000075040000-0x00000000757FC000-memory.dmp

        memory/4676-3-0x0000000005620000-0x00000000056BC000-memory.dmp

        memory/4676-8-0x0000000075040000-0x00000000757FC000-memory.dmp