Overview

overview

10

Static

static

10

ck9.exe

windows10-2004-x64

10

ck9.exe

windows11-ltsc_2024-x64

10

Resubmissions

04/07/2026, 01:39

260704-b27wasas2110

04/07/2026, 01:32

260704-bxyrtsev3k10

Analysis

  • user interaction
    yes
  • max time kernel
    179s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/07/2026, 01:39

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General

  • Target
    ck9.exe
  • Size 45KB
  • Sample260704-b27wasas21
  • SHA256 8415a73cfe1e48f8254cbb9a9b7ce6db4d2c40e23b35c8cd9df35e1d20db6fa6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • foxcoins.io:443

  • foxcoins.io:80

  • foxcoins.io:25

  • foxcoins.io:8443

  • chefhsushunanstar.com:443

  • chefhsushunanstar.com:80

  • chefhsushunanstar.com:25

  • chefhsushunanstar.com:8443

  • traditionalnativegames.org:443

  • traditionalnativegames.org:80

  • traditionalnativegames.org:25

  • traditionalnativegames.org:8443

  • cakhia3.site:443

  • cakhia3.site:80

  • cakhia3.site:25

  • cakhia3.site:8443

Mutex

  • 9yfN62PIGCHI

Attributes
  • delay

    9

  • install

    true

  • install_file

    ck9.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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ck9.exe
    "C:\Users\Admin\AppData\Local\Temp\ck9.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5360
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ck9" /tr '"C:\Users\Admin\AppData\Roaming\ck9.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5712
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "ck9" /tr '"C:\Users\Admin\AppData\Roaming\ck9.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4640
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp65F8.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5072
      • C:\Users\Admin\AppData\Roaming\ck9.exe
        "C:\Users\Admin\AppData\Roaming\ck9.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2368
  • C:\Users\Admin\AppData\Roaming\ck9.exe
    "C:\Users\Admin\AppData\Roaming\ck9.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1396

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        ck9.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ck9.exe.log
        • Size 522B
        • SHA256 2412679218bb0a7d05ceee32869bbb223619bde9966c4c460a68304a3367724b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        tmp65F8.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp65F8.tmp.bat
        • Size 147B
        • SHA256 3080ad71a94ece4e6511e852847620650f668699750901a00e30cee04f9ce81a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ck9.exe
        • Path C:\Users\Admin\AppData\Roaming\ck9.exe
        • Size 45KB
        • SHA256 8415a73cfe1e48f8254cbb9a9b7ce6db4d2c40e23b35c8cd9df35e1d20db6fa6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/5360-0-0x0000000000060000-0x0000000000072000-memory.dmp
        Download

        memory/5360-1-0x0000000004A30000-0x0000000004A40000-memory.dmp
        Download

        memory/5360-2-0x0000000004A40000-0x0000000004ADC000-memory.dmp
        Download