Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260630-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 10:19

General

  • Target
    6823b8a4defe452b944696b27ed6a97256284fa28ea4e960991303d40fe7b947.exe
  • Size 45KB
  • Sample260703-mchewsft3t
  • SHA256 6823b8a4defe452b944696b27ed6a97256284fa28ea4e960991303d40fe7b947
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • vida-nova-design.com:80

  • vida-nova-design.com:22

  • vida-nova-design.com:8080

  • vida-nova-design.com:8880

  • vida-nova-design.com:2052

  • vida-nova-design.com:2082

  • vida-nova-design.com:2086

  • vida-nova-design.com:2095

  • vida-nova-design.com:443

  • vida-nova-design.com:2053

  • vida-nova-design.com:2083

  • vida-nova-design.com:2087

  • vida-nova-design.com:2096

  • vida-nova-design.com:8443

  • www.vida-nova-design.com:80

  • www.vida-nova-design.com:22

  • www.vida-nova-design.com:8080

  • www.vida-nova-design.com:8880

  • www.vida-nova-design.com:2052

  • www.vida-nova-design.com:2082

Mutex
  • 0PHggtLlgnRk

Attributes
  • delay

    0

  • install

    true

  • install_file

    jym9a.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\6823b8a4defe452b944696b27ed6a97256284fa28ea4e960991303d40fe7b947.exe
    "C:\Users\Admin\AppData\Local\Temp\6823b8a4defe452b944696b27ed6a97256284fa28ea4e960991303d40fe7b947.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2900
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "jym9a" /tr '"C:\Users\Admin\AppData\Roaming\jym9a.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "jym9a" /tr '"C:\Users\Admin\AppData\Roaming\jym9a.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4188
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC723.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5892
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3160
      • C:\Users\Admin\AppData\Roaming\jym9a.exe
        "C:\Users\Admin\AppData\Roaming\jym9a.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4436
  • C:\Users\Admin\AppData\Roaming\jym9a.exe
    "C:\Users\Admin\AppData\Roaming\jym9a.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1988

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpC723.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpC723.tmp.bat
        • Size 149B
        • SHA256 60e0c0e43266022d2e06faf7b4c14dd0e850801b76501a25abd6dbc70cf65d68
        • MD5 SHA1 SHA512 TLSH

        jym9a.exe

        • Path C:\Users\Admin\AppData\Roaming\jym9a.exe
        • Size 45KB
        • SHA256 6823b8a4defe452b944696b27ed6a97256284fa28ea4e960991303d40fe7b947
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1988-12-0x0000000074C70000-0x000000007542C000-memory.dmp

        memory/1988-14-0x0000000074C70000-0x000000007542C000-memory.dmp

        memory/2900-0-0x0000000074DF2000-0x0000000074DF3000-memory.dmp

        memory/2900-1-0x00000000009C0000-0x00000000009D2000-memory.dmp

        memory/2900-2-0x0000000074DE0000-0x000000007559C000-memory.dmp

        memory/2900-3-0x0000000005520000-0x00000000055BC000-memory.dmp

        memory/2900-8-0x0000000074DE0000-0x000000007559C000-memory.dmp