Analysis

  • max time kernel
    6s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/09/2026, 00:50

General

  • Target
    5b5f1c5dba1c659ccddc41aef5906d0c27e8a8fd61e8c6164a51aec50039a9c4.exe
  • Size 45KB
  • Sample260908-a7e7ssap81
  • SHA256 5b5f1c5dba1c659ccddc41aef5906d0c27e8a8fd61e8c6164a51aec50039a9c4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • phimsexhaylam.com:80

  • phimsexhaylam.com:22

  • phimsexhaylam.com:8080

  • phimsexhaylam.com:8880

  • phimsexhaylam.com:2052

  • phimsexhaylam.com:2082

  • phimsexhaylam.com:2086

  • phimsexhaylam.com:2095

  • phimsexhaylam.com:443

  • phimsexhaylam.com:2053

  • phimsexhaylam.com:2083

  • phimsexhaylam.com:2087

  • phimsexhaylam.com:2096

  • phimsexhaylam.com:8443

  • www.phimsexhaylam.com:80

  • www.phimsexhaylam.com:22

  • www.phimsexhaylam.com:8080

  • www.phimsexhaylam.com:8880

  • www.phimsexhaylam.com:2052

  • www.phimsexhaylam.com:2082

Mutex
  • 5Hy3ewCHxfOX

Attributes
  • delay

    0

  • install

    true

  • install_file

    piezm.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
  • Outbound SSH connection to public host 2 TTPs 2 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b5f1c5dba1c659ccddc41aef5906d0c27e8a8fd61e8c6164a51aec50039a9c4.exe
    "C:\Users\Admin\AppData\Local\Temp\5b5f1c5dba1c659ccddc41aef5906d0c27e8a8fd61e8c6164a51aec50039a9c4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "piezm" /tr '"C:\Users\Admin\AppData\Roaming\piezm.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:200
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "piezm" /tr '"C:\Users\Admin\AppData\Roaming\piezm.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:6108
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp74B9.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4300
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2844
      • C:\Users\Admin\AppData\Roaming\piezm.exe
        "C:\Users\Admin\AppData\Roaming\piezm.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5924
  • C:\Users\Admin\AppData\Roaming\piezm.exe
    "C:\Users\Admin\AppData\Roaming\piezm.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2124

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp74B9.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp74B9.tmp.bat
        • Size 149B
        • SHA256 cac6182a53947fecb0fc409b5b3137b8d8b09c8f5f5750466bb1b86897eb9379
        • MD5 SHA1 SHA512 TLSH

        piezm.exe

        • Path C:\Users\Admin\AppData\Roaming\piezm.exe
        • Size 45KB
        • SHA256 5b5f1c5dba1c659ccddc41aef5906d0c27e8a8fd61e8c6164a51aec50039a9c4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2124-12-0x00000000745A0000-0x0000000074D5C000-memory.dmp

        memory/2124-14-0x00000000745A0000-0x0000000074D5C000-memory.dmp

        memory/4108-0-0x0000000074752000-0x0000000074753000-memory.dmp

        memory/4108-1-0x0000000000460000-0x0000000000472000-memory.dmp

        memory/4108-2-0x0000000074740000-0x0000000074EFC000-memory.dmp

        memory/4108-3-0x0000000004F80000-0x000000000501C000-memory.dmp

        memory/4108-8-0x0000000074740000-0x0000000074EFC000-memory.dmp