Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 17:19

General

  • Target
    35d7fa922959451fae5e8699c1ada58e4d0501466ac45075dad46a340317d27c.exe
  • Size 45KB
  • Sample260720-vwas6aa171
  • SHA256 35d7fa922959451fae5e8699c1ada58e4d0501466ac45075dad46a340317d27c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • kacasatu.com:80

  • kacasatu.com:22

  • kacasatu.com:8080

  • kacasatu.com:8880

  • kacasatu.com:2052

  • kacasatu.com:2082

  • kacasatu.com:2086

  • kacasatu.com:2095

  • kacasatu.com:443

  • kacasatu.com:2053

  • kacasatu.com:2083

  • kacasatu.com:2087

  • kacasatu.com:2096

  • kacasatu.com:8443

  • www.kacasatu.com:80

  • www.kacasatu.com:22

  • www.kacasatu.com:8080

  • www.kacasatu.com:8880

  • www.kacasatu.com:2052

  • www.kacasatu.com:2082

Mutex
  • QE61k7yiVtYk

Attributes
  • delay

    0

  • install

    true

  • install_file

    6uu01my.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 1 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 6 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 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\35d7fa922959451fae5e8699c1ada58e4d0501466ac45075dad46a340317d27c.exe
    "C:\Users\Admin\AppData\Local\Temp\35d7fa922959451fae5e8699c1ada58e4d0501466ac45075dad46a340317d27c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1300
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "6uu01my" /tr '"C:\Users\Admin\AppData\Roaming\6uu01my.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5628
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "6uu01my" /tr '"C:\Users\Admin\AppData\Roaming\6uu01my.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3432
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2EB7.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1552
      • C:\Users\Admin\AppData\Roaming\6uu01my.exe
        "C:\Users\Admin\AppData\Roaming\6uu01my.exe"
        3⤵
          PID:3848
    • C:\Users\Admin\AppData\Roaming\6uu01my.exe
      "C:\Users\Admin\AppData\Roaming\6uu01my.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5820

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          tmp2EB7.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmp2EB7.tmp.bat
          • Size 151B
          • SHA256 62b68eb44d7006054dd986127d234fcdc21420c82dd8ba3517ea6d990cc5b198
          • MD5 SHA1 SHA512 TLSH

          6uu01my.exe

          • Path C:\Users\Admin\AppData\Roaming\6uu01my.exe
          • Size 45KB
          • SHA256 35d7fa922959451fae5e8699c1ada58e4d0501466ac45075dad46a340317d27c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1300-0-0x0000000074792000-0x0000000074793000-memory.dmp

          memory/1300-1-0x0000000000350000-0x0000000000362000-memory.dmp

          memory/1300-2-0x0000000074780000-0x0000000074F3C000-memory.dmp

          memory/1300-3-0x0000000004E60000-0x0000000004EFC000-memory.dmp

          memory/1300-8-0x0000000074780000-0x0000000074F3C000-memory.dmp

          memory/5820-12-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/5820-14-0x0000000074580000-0x0000000074D3C000-memory.dmp