Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/06/2026, 20:37

General

  • Target
    97fa02781d8a228738d704c93fe64ff4dee91c7ce1dc108c147b92ed3ccd9031.exe
  • Size 45KB
  • Sample260621-zel73sft3j
  • SHA256 97fa02781d8a228738d704c93fe64ff4dee91c7ce1dc108c147b92ed3ccd9031
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • thichphimsexhay.com:80

  • thichphimsexhay.com:22

  • thichphimsexhay.com:8080

  • thichphimsexhay.com:8880

  • thichphimsexhay.com:2052

  • thichphimsexhay.com:2082

  • thichphimsexhay.com:2086

  • thichphimsexhay.com:2095

  • thichphimsexhay.com:443

  • thichphimsexhay.com:2053

  • thichphimsexhay.com:2083

  • thichphimsexhay.com:2087

  • thichphimsexhay.com:2096

  • thichphimsexhay.com:8443

  • www.thichphimsexhay.com:80

  • www.thichphimsexhay.com:22

  • www.thichphimsexhay.com:8080

  • www.thichphimsexhay.com:8880

  • www.thichphimsexhay.com:2052

  • www.thichphimsexhay.com:2082

Mutex
  • PI0tciv7JZuG

Attributes
  • delay

    0

  • install

    true

  • install_file

    3zxyks.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\97fa02781d8a228738d704c93fe64ff4dee91c7ce1dc108c147b92ed3ccd9031.exe
    "C:\Users\Admin\AppData\Local\Temp\97fa02781d8a228738d704c93fe64ff4dee91c7ce1dc108c147b92ed3ccd9031.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5808
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "3zxyks" /tr '"C:\Users\Admin\AppData\Roaming\3zxyks.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6500
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "3zxyks" /tr '"C:\Users\Admin\AppData\Roaming\3zxyks.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5400
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4DEC.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:8
      • C:\Users\Admin\AppData\Roaming\3zxyks.exe
        "C:\Users\Admin\AppData\Roaming\3zxyks.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:7108
  • C:\Users\Admin\AppData\Roaming\3zxyks.exe
    "C:\Users\Admin\AppData\Roaming\3zxyks.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:6112

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp4DEC.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp4DEC.tmp.bat
        • Size 150B
        • SHA256 fbeaeb6a07c8165999605fe4a87746925e4790558c1b5df84e19403f0f6f61cb
        • MD5 SHA1 SHA512 TLSH

        3zxyks.exe

        • Path C:\Users\Admin\AppData\Roaming\3zxyks.exe
        • Size 45KB
        • SHA256 97fa02781d8a228738d704c93fe64ff4dee91c7ce1dc108c147b92ed3ccd9031
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5808-0-0x0000000074662000-0x0000000074663000-memory.dmp

        memory/5808-1-0x00000000009A0000-0x00000000009B2000-memory.dmp

        memory/5808-2-0x0000000074650000-0x0000000074E0C000-memory.dmp

        memory/5808-3-0x00000000053E0000-0x000000000547C000-memory.dmp

        memory/5808-8-0x0000000074650000-0x0000000074E0C000-memory.dmp

        memory/6112-12-0x00000000744E0000-0x0000000074C9C000-memory.dmp

        memory/6112-14-0x00000000744E0000-0x0000000074C9C000-memory.dmp