Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 01:16

General

  • Target
    dae1bac46e01f0716e2956e765999813b89d4fa54a1473f74b8dc71663a8ed46.exe
  • Size 110KB
  • Sample260831-bm46vsshlf
  • SHA256 dae1bac46e01f0716e2956e765999813b89d4fa54a1473f74b8dc71663a8ed46
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • CK44.com:6606

  • CK44.com:7707

  • CK44.com:8808

  • CK44.com:80

  • CK44.com:443

Mutex
  • 8kstusttzvw2

Attributes
  • delay

    3

  • install

    true

  • install_file

    CK44.com.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\dae1bac46e01f0716e2956e765999813b89d4fa54a1473f74b8dc71663a8ed46.exe
    "C:\Users\Admin\AppData\Local\Temp\dae1bac46e01f0716e2956e765999813b89d4fa54a1473f74b8dc71663a8ed46.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4500
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "CK44.com" /tr '"C:\Users\Admin\AppData\Roaming\CK44.com.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "CK44.com" /tr '"C:\Users\Admin\AppData\Roaming\CK44.com.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2804
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD404.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5288
      • C:\Users\Admin\AppData\Roaming\CK44.com.exe
        "C:\Users\Admin\AppData\Roaming\CK44.com.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2800
  • C:\Users\Admin\AppData\Roaming\CK44.com.exe
    "C:\Users\Admin\AppData\Roaming\CK44.com.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1244

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpD404.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpD404.tmp.bat
        • Size 152B
        • SHA256 45b353b51e1f5fa23611da4e6ed5cbf0336d2686232fe89d7541dac2f779531f
        • MD5 SHA1 SHA512 TLSH

        CK44.com.exe

        • Path C:\Users\Admin\AppData\Roaming\CK44.com.exe
        • Size 110KB
        • SHA256 dae1bac46e01f0716e2956e765999813b89d4fa54a1473f74b8dc71663a8ed46
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1244-12-0x0000000074930000-0x00000000750EC000-memory.dmp

        memory/1244-14-0x0000000074930000-0x00000000750EC000-memory.dmp

        memory/4500-0-0x0000000074AB2000-0x0000000074AB3000-memory.dmp

        memory/4500-1-0x0000000000220000-0x0000000000242000-memory.dmp

        memory/4500-2-0x0000000074AA0000-0x000000007525C000-memory.dmp

        memory/4500-3-0x0000000004C30000-0x0000000004CCC000-memory.dmp

        memory/4500-8-0x0000000074AA0000-0x000000007525C000-memory.dmp