Analysis

  • max time kernel
    7s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 16:18

General

  • Target
    ed239fb09b96fb137cfc8d5e8d4678623ca22097c172e8ace3f3f24e3bac5515.exe
  • Size 45KB
  • Sample260722-trzfaaydra
  • SHA256 ed239fb09b96fb137cfc8d5e8d4678623ca22097c172e8ace3f3f24e3bac5515
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexdeptv.com:80

  • sexdeptv.com:22

  • sexdeptv.com:8080

  • sexdeptv.com:8880

  • sexdeptv.com:2052

  • sexdeptv.com:2082

  • sexdeptv.com:2086

  • sexdeptv.com:2095

  • sexdeptv.com:443

  • sexdeptv.com:2053

  • sexdeptv.com:2083

  • sexdeptv.com:2087

  • sexdeptv.com:2096

  • sexdeptv.com:8443

  • www.sexdeptv.com:80

  • www.sexdeptv.com:22

  • www.sexdeptv.com:8080

  • www.sexdeptv.com:8880

  • www.sexdeptv.com:2052

  • www.sexdeptv.com:2082

Mutex
  • LnRIU9FJU8Tv

Attributes
  • delay

    0

  • install

    true

  • install_file

    nk8c.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\ed239fb09b96fb137cfc8d5e8d4678623ca22097c172e8ace3f3f24e3bac5515.exe
    "C:\Users\Admin\AppData\Local\Temp\ed239fb09b96fb137cfc8d5e8d4678623ca22097c172e8ace3f3f24e3bac5515.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nk8c" /tr '"C:\Users\Admin\AppData\Roaming\nk8c.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3168
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "nk8c" /tr '"C:\Users\Admin\AppData\Roaming\nk8c.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4444
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCA8.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4848
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1388
      • C:\Users\Admin\AppData\Roaming\nk8c.exe
        "C:\Users\Admin\AppData\Roaming\nk8c.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2312
  • C:\Users\Admin\AppData\Roaming\nk8c.exe
    "C:\Users\Admin\AppData\Roaming\nk8c.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpCA8.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpCA8.tmp.bat
        • Size 147B
        • SHA256 ba070f46637649ee11173256b297dbfbd1aa260ae3e3f3b1baebb8f6450f5fc7
        • MD5 SHA1 SHA512 TLSH

        nk8c.exe

        • Path C:\Users\Admin\AppData\Roaming\nk8c.exe
        • Size 45KB
        • SHA256 ed239fb09b96fb137cfc8d5e8d4678623ca22097c172e8ace3f3f24e3bac5515
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2128-12-0x0000000075090000-0x000000007584C000-memory.dmp

        memory/2128-14-0x0000000075090000-0x000000007584C000-memory.dmp

        memory/2380-0-0x00000000750A2000-0x00000000750A3000-memory.dmp

        memory/2380-1-0x0000000000790000-0x00000000007A2000-memory.dmp

        memory/2380-2-0x0000000075090000-0x000000007584C000-memory.dmp

        memory/2380-3-0x0000000005300000-0x000000000539C000-memory.dmp

        memory/2380-8-0x0000000075090000-0x000000007584C000-memory.dmp