Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Client.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    30s
  • max time network
    31s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/09/2026, 04:37

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General

  • Target
    Client.exe
  • Size 46KB
  • Sample260904-e8645asapc
  • SHA256 3fd383d14f95fdb789ec1f0f97ce32c618d0f65dcf091b44f00d4fafe9f6dcb3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
nulldefense_evasionexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.6A

Botnet

  • null

C2

  • 789win91.cyou:8080

  • 789win91.cyou:443

  • 789win91.cyou:80

  • 789win91.cyou:8443

  • turbogram.co:8080

  • turbogram.co:443

  • turbogram.co:80

  • turbogram.co:8443

  • refuel-casino.co:8080

  • refuel-casino.co:443

  • refuel-casino.co:80

  • refuel-casino.co:8443

  • vavada-tq.buzz:8080

  • vavada-tq.buzz:443

  • vavada-tq.buzz:80

  • vavada-tq.buzz:8443

  • v52casino.co:8080

  • v52casino.co:443

  • v52casino.co:80

  • v52casino.co:8443

Mutex

  • CloudFlare, Inc. (Cloudflare, Inc.)

Attributes
  • delay

    5

  • install

    true

  • install_file

    system.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

    ratasyncrat
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
      PID:1968
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'system"' /tr "'C:\Users\Admin\AppData\Roaming\system.exe"'
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1956
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFEC9.tmp.bat""
        2⤵
        • Executes a command shell one-liner
        PID:2804
        • C:\Windows\system32\timeout.exe
          timeout 3
          3⤵
          • Delays execution with timeout.exe
          PID:4396
        • C:\Users\Admin\AppData\Roaming\system.exe
          "C:\Users\Admin\AppData\Roaming\system.exe"
          3⤵
            PID:236

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            tmpFEC9.tmp.bat
            • Path C:\Users\Admin\AppData\Local\Temp\tmpFEC9.tmp.bat
            • Size 150B
            • SHA256 3e2ef60d889ee2145d34515784b57d4dc402b913db3b1abbef640fa064f7d37d
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            system.exe
            • Path C:\Users\Admin\AppData\Roaming\system.exe
            • Size 43.2MB
            • SHA256 8a8621294bfe87aaca23a0c7a2233f0bb5c362dc2d99e290600a2e49e43f12f6
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/1968-0-0x00000000000D0000-0x00000000000E2000-memory.dmp
            Download

            memory/1968-1-0x00007FFB0B42F000-0x00007FFB0B430000-memory.dmp
            Download

            memory/1968-2-0x00007FFB0B2A0000-0x00007FFB0BC44000-memory.dmp
            Download

            memory/1968-3-0x00007FFB0B2A0000-0x00007FFB0BC44000-memory.dmp
            Download

            memory/1968-4-0x00007FFB0B2A0000-0x00007FFB0BC44000-memory.dmp
            Download

            memory/1968-8-0x00007FFB0B2A0000-0x00007FFB0BC44000-memory.dmp
            Download