Overview

overview

10

Static

static

10

aupyua.exe

windows10-2004-x64

10

aupyua.exe

windows11-21h2-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/05/2026, 02:41

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General

  • Target
    aupyua.exe
  • Size 45KB
  • Sample260530-c6hmmsdv91
  • SHA256 0961e5f26a343a68db891eb8809da2a87f63159f255ae7e51d6aeba6b5146fd2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • vnsextop1.com:6606

  • vnsextop1.com:7707

  • vnsextop1.com:8808

  • vnsextop1.com:443

  • vnsextop1.com:80

  • malware.vnsextop1.com:6606

  • malware.vnsextop1.com:7707

  • malware.vnsextop1.com:8808

  • malware.vnsextop1.com:443

  • malware.vnsextop1.com:80

  • sex.vnsextop1.com:6606

  • sex.vnsextop1.com:7707

  • sex.vnsextop1.com:8808

  • sex.vnsextop1.com:443

  • sex.vnsextop1.com:80

  • rat.vnsextop1.com:6606

  • rat.vnsextop1.com:7707

  • rat.vnsextop1.com:8808

  • rat.vnsextop1.com:443

  • rat.vnsextop1.com:80

Mutex

  • ABfXQlsykTwq

Attributes
  • delay

    3

  • install

    true

  • install_file

    aupyua.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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

    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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aupyua.exe
    "C:\Users\Admin\AppData\Local\Temp\aupyua.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "aupyua" /tr '"C:\Users\Admin\AppData\Roaming\aupyua.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:768
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "aupyua" /tr '"C:\Users\Admin\AppData\Roaming\aupyua.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4176
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4ADF.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4612
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3236
      • C:\Users\Admin\AppData\Roaming\aupyua.exe
        "C:\Users\Admin\AppData\Roaming\aupyua.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4320
  • C:\Users\Admin\AppData\Roaming\aupyua.exe
    "C:\Users\Admin\AppData\Roaming\aupyua.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2880

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        aupyua.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\aupyua.exe.log
        • Size 522B
        • SHA256 2412679218bb0a7d05ceee32869bbb223619bde9966c4c460a68304a3367724b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        tmp4ADF.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp4ADF.tmp.bat
        • Size 150B
        • SHA256 2eea6b958cc9d6ae1c744ff8161508ed713f0188f9491801781b557eda180698
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        aupyua.exe
        • Path C:\Users\Admin\AppData\Roaming\aupyua.exe
        • Size 45KB
        • SHA256 0961e5f26a343a68db891eb8809da2a87f63159f255ae7e51d6aeba6b5146fd2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3620-0-0x00000000003D0000-0x00000000003E2000-memory.dmp
        Download

        memory/3620-1-0x0000000004E10000-0x0000000004E20000-memory.dmp
        Download

        memory/3620-2-0x0000000004E20000-0x0000000004EBC000-memory.dmp
        Download