Analysis

  • max time kernel
    148s
  • max time network
    149s
  • 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, 09:45

General

  • Target
    1aa79e2fbb0df75d22979cd1bb8eaaf7de203878bd3dd99fa994a38f4b09ab79.exe
  • Size 45KB
  • Sample260722-lq4plsserc
  • SHA256 1aa79e2fbb0df75d22979cd1bb8eaaf7de203878bd3dd99fa994a38f4b09ab79
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sex18.tech:80

  • sex18.tech:22

  • sex18.tech:8080

  • sex18.tech:8880

  • sex18.tech:2052

  • sex18.tech:2082

  • sex18.tech:2086

  • sex18.tech:2095

  • sex18.tech:443

  • sex18.tech:2053

  • sex18.tech:2083

  • sex18.tech:2087

  • sex18.tech:2096

  • sex18.tech:8443

  • www.sex18.tech:80

  • www.sex18.tech:22

  • www.sex18.tech:8080

  • www.sex18.tech:8880

  • www.sex18.tech:2052

  • www.sex18.tech:2082

Mutex
  • KRGT7PnXjH17

Attributes
  • delay

    0

  • install

    true

  • install_file

    yn1p.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\1aa79e2fbb0df75d22979cd1bb8eaaf7de203878bd3dd99fa994a38f4b09ab79.exe
    "C:\Users\Admin\AppData\Local\Temp\1aa79e2fbb0df75d22979cd1bb8eaaf7de203878bd3dd99fa994a38f4b09ab79.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "yn1p" /tr '"C:\Users\Admin\AppData\Roaming\yn1p.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6676
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "yn1p" /tr '"C:\Users\Admin\AppData\Roaming\yn1p.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:6292
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp336A.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6296
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4180
      • C:\Users\Admin\AppData\Roaming\yn1p.exe
        "C:\Users\Admin\AppData\Roaming\yn1p.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4808
  • C:\Users\Admin\AppData\Roaming\yn1p.exe
    "C:\Users\Admin\AppData\Roaming\yn1p.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:6688

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp336A.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp336A.tmp.bat
        • Size 148B
        • SHA256 38fcf50be5d850fd63755dcd5fb863c07c1ab7b88560c3517aa745057c871517
        • MD5 SHA1 SHA512 TLSH

        yn1p.exe

        • Path C:\Users\Admin\AppData\Roaming\yn1p.exe
        • Size 45KB
        • SHA256 1aa79e2fbb0df75d22979cd1bb8eaaf7de203878bd3dd99fa994a38f4b09ab79
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2220-0-0x0000000074842000-0x0000000074843000-memory.dmp

        memory/2220-1-0x0000000000580000-0x0000000000592000-memory.dmp

        memory/2220-2-0x0000000074830000-0x0000000074FEC000-memory.dmp

        memory/2220-3-0x0000000005000000-0x000000000509C000-memory.dmp

        memory/2220-8-0x0000000074830000-0x0000000074FEC000-memory.dmp

        memory/6688-12-0x00000000746C0000-0x0000000074E7C000-memory.dmp

        memory/6688-14-0x00000000746C0000-0x0000000074E7C000-memory.dmp