Analysis

  • max time kernel
    6s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 15:37

General

  • Target
    950fc89be38df34fb2f49ea289bf390bb40b27d927806629b136b2600d2c40f4.exe
  • Size 45KB
  • Sample260804-s2vz6stdmd
  • SHA256 950fc89be38df34fb2f49ea289bf390bb40b27d927806629b136b2600d2c40f4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • vnsextop1.com:80

  • vnsextop1.com:22

  • vnsextop1.com:8080

  • vnsextop1.com:8880

  • vnsextop1.com:2052

  • vnsextop1.com:2082

  • vnsextop1.com:2086

  • vnsextop1.com:2095

  • vnsextop1.com:443

  • vnsextop1.com:2053

  • vnsextop1.com:2083

  • vnsextop1.com:2087

  • vnsextop1.com:2096

  • vnsextop1.com:8443

  • www.vnsextop1.com:80

  • www.vnsextop1.com:22

  • www.vnsextop1.com:8080

  • www.vnsextop1.com:8880

  • www.vnsextop1.com:2052

  • www.vnsextop1.com:2082

Mutex
  • u1fUZS6s0173

Attributes
  • delay

    0

  • install

    true

  • install_file

    ia0g0.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 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\950fc89be38df34fb2f49ea289bf390bb40b27d927806629b136b2600d2c40f4.exe
    "C:\Users\Admin\AppData\Local\Temp\950fc89be38df34fb2f49ea289bf390bb40b27d927806629b136b2600d2c40f4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4124
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ia0g0" /tr '"C:\Users\Admin\AppData\Roaming\ia0g0.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6012
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "ia0g0" /tr '"C:\Users\Admin\AppData\Roaming\ia0g0.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1524
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp451D.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2012
      • C:\Users\Admin\AppData\Roaming\ia0g0.exe
        "C:\Users\Admin\AppData\Roaming\ia0g0.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5952
  • C:\Users\Admin\AppData\Roaming\ia0g0.exe
    "C:\Users\Admin\AppData\Roaming\ia0g0.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2468

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp451D.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp451D.tmp.bat
        • Size 149B
        • SHA256 0ccc8b9511dd05820ee5644b2dbd639eef4777ffd1fd206b85370da2d72632c3
        • MD5 SHA1 SHA512 TLSH

        ia0g0.exe

        • Path C:\Users\Admin\AppData\Roaming\ia0g0.exe
        • Size 45KB
        • SHA256 950fc89be38df34fb2f49ea289bf390bb40b27d927806629b136b2600d2c40f4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2468-12-0x0000000074820000-0x0000000074FDC000-memory.dmp

        memory/2468-14-0x0000000074820000-0x0000000074FDC000-memory.dmp

        memory/4124-0-0x0000000074832000-0x0000000074833000-memory.dmp

        memory/4124-1-0x0000000000670000-0x0000000000682000-memory.dmp

        memory/4124-2-0x0000000074820000-0x0000000074FDC000-memory.dmp

        memory/4124-3-0x00000000050C0000-0x000000000515C000-memory.dmp

        memory/4124-9-0x0000000074820000-0x0000000074FDC000-memory.dmp