Analysis

  • max time kernel
    5s
  • max time network
    61s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260630-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 19:51

General

  • Target
    470c7a998416776d78ea5a389b035ff7fd0f01a7b2e5f718d455af0461d96245.exe
  • Size 45KB
  • Sample260705-ylal7aa16m
  • SHA256 470c7a998416776d78ea5a389b035ff7fd0f01a7b2e5f718d455af0461d96245
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • transferstropicalsunbay.com:80

  • transferstropicalsunbay.com:22

  • transferstropicalsunbay.com:8080

  • transferstropicalsunbay.com:8880

  • transferstropicalsunbay.com:2052

  • transferstropicalsunbay.com:2082

  • transferstropicalsunbay.com:2086

  • transferstropicalsunbay.com:2095

  • transferstropicalsunbay.com:443

  • transferstropicalsunbay.com:2053

  • transferstropicalsunbay.com:2083

  • transferstropicalsunbay.com:2087

  • transferstropicalsunbay.com:2096

  • transferstropicalsunbay.com:8443

  • www.transferstropicalsunbay.com:80

  • www.transferstropicalsunbay.com:22

  • www.transferstropicalsunbay.com:8080

  • www.transferstropicalsunbay.com:8880

  • www.transferstropicalsunbay.com:2052

  • www.transferstropicalsunbay.com:2082

Mutex
  • M4hyHYiTMRPa

Attributes
  • delay

    0

  • install

    true

  • install_file

    pqytf.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\470c7a998416776d78ea5a389b035ff7fd0f01a7b2e5f718d455af0461d96245.exe
    "C:\Users\Admin\AppData\Local\Temp\470c7a998416776d78ea5a389b035ff7fd0f01a7b2e5f718d455af0461d96245.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "pqytf" /tr '"C:\Users\Admin\AppData\Roaming\pqytf.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6060
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "pqytf" /tr '"C:\Users\Admin\AppData\Roaming\pqytf.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1548
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8F5A.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6408
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:6816
      • C:\Users\Admin\AppData\Roaming\pqytf.exe
        "C:\Users\Admin\AppData\Roaming\pqytf.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2188
  • C:\Users\Admin\AppData\Roaming\pqytf.exe
    "C:\Users\Admin\AppData\Roaming\pqytf.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:7132

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp8F5A.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp8F5A.tmp.bat
        • Size 149B
        • SHA256 14b8184663d517ce49c8f8513e65f86a15b7123cce9fd7ae3a41fda13e5e96e8
        • MD5 SHA1 SHA512 TLSH

        pqytf.exe

        • Path C:\Users\Admin\AppData\Roaming\pqytf.exe
        • Size 45KB
        • SHA256 470c7a998416776d78ea5a389b035ff7fd0f01a7b2e5f718d455af0461d96245
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5728-0-0x0000000074CF2000-0x0000000074CF3000-memory.dmp

        memory/5728-1-0x0000000000400000-0x0000000000412000-memory.dmp

        memory/5728-2-0x0000000074CE0000-0x000000007549C000-memory.dmp

        memory/5728-3-0x0000000004FF0000-0x000000000508C000-memory.dmp

        memory/5728-8-0x0000000074CE0000-0x000000007549C000-memory.dmp

        memory/7132-12-0x0000000074C70000-0x000000007542C000-memory.dmp

        memory/7132-14-0x0000000074C70000-0x000000007542C000-memory.dmp