Overview

overview

10

Static

static

10

8417a2cd38...5d.exe

windows10-2004-x64

10

8417a2cd38...5d.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    1s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/09/2026, 20:17

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General

  • Target
    8417a2cd3857f9522a2fc31ef7ac112a2a18c86ed81a6ce81678b5a87b58725d.exe
  • Size 45KB
  • Sample260907-y2vbjabb82
  • SHA256 8417a2cd3857f9522a2fc31ef7ac112a2a18c86ed81a6ce81678b5a87b58725d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • topsexviet.one:80

  • topsexviet.one:22

  • topsexviet.one:8080

  • topsexviet.one:8880

  • topsexviet.one:2052

  • topsexviet.one:2082

  • topsexviet.one:2086

  • topsexviet.one:2095

  • topsexviet.one:443

  • topsexviet.one:2053

  • topsexviet.one:2083

  • topsexviet.one:2087

  • topsexviet.one:2096

  • topsexviet.one:8443

  • www.topsexviet.one:80

  • www.topsexviet.one:22

  • www.topsexviet.one:8080

  • www.topsexviet.one:8880

  • www.topsexviet.one:2052

  • www.topsexviet.one:2082

Mutex

  • RnJxSZo3yDPm

Attributes
  • delay

    0

  • install

    true

  • install_file

    oonyn22.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • 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.

    execution
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8417a2cd3857f9522a2fc31ef7ac112a2a18c86ed81a6ce81678b5a87b58725d.exe
    "C:\Users\Admin\AppData\Local\Temp\8417a2cd3857f9522a2fc31ef7ac112a2a18c86ed81a6ce81678b5a87b58725d.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1244
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "oonyn22" /tr '"C:\Users\Admin\AppData\Roaming\oonyn22.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      PID:2632
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "oonyn22" /tr '"C:\Users\Admin\AppData\Roaming\oonyn22.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4272
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5A40.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      PID:3176
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4444
      • C:\Users\Admin\AppData\Roaming\oonyn22.exe
        "C:\Users\Admin\AppData\Roaming\oonyn22.exe"
        3⤵
          PID:3216
    • C:\Users\Admin\AppData\Roaming\oonyn22.exe
      "C:\Users\Admin\AppData\Roaming\oonyn22.exe"
      1⤵
        PID:4632

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            tmp5A40.tmp.bat
            • Path C:\Users\Admin\AppData\Local\Temp\tmp5A40.tmp.bat
            • Size 151B
            • SHA256 a8ea314a38a347ed36bee0a984177705304a59b4ca814a9df7ded21589e29b25
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            oonyn22.exe
            • Path C:\Users\Admin\AppData\Roaming\oonyn22.exe
            • Size 45KB
            • SHA256 8417a2cd3857f9522a2fc31ef7ac112a2a18c86ed81a6ce81678b5a87b58725d
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/1244-0-0x00000000002B0000-0x00000000002C2000-memory.dmp
            Download

            memory/1244-1-0x0000000004D50000-0x0000000004D60000-memory.dmp
            Download

            memory/1244-2-0x0000000004C60000-0x0000000004CFC000-memory.dmp
            Download

            memory/4632-10-0x00000000058D0000-0x00000000058E0000-memory.dmp
            Download

            memory/4632-13-0x00000000058D0000-0x00000000058E0000-memory.dmp
            Download