Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/08/2026, 22:23

General

  • Target
    17de6ca7adff24ddb9d4d081f21b77d40fdcc7b93e5d8dcff4d1b6ee08e654f5.exe
  • Size 45KB
  • Sample260830-2a95fsdf53
  • SHA256 17de6ca7adff24ddb9d4d081f21b77d40fdcc7b93e5d8dcff4d1b6ee08e654f5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • vnsextop1.com:80

  • vnsextop1.com:22

  • vnsextop1.com:8080

  • vnsextop1.com:8880

  • vnsextop1.com:2052

  • vnsextop1.com:2082

  • vnsextop1.com:2086

  • vnsextop1.com:2095

  • vnsextop1.com:443

  • vnsextop1.com:2053

  • vnsextop1.com:2083

  • vnsextop1.com:2087

  • vnsextop1.com:2096

  • vnsextop1.com:8443

  • www.vnsextop1.com:80

  • www.vnsextop1.com:22

  • www.vnsextop1.com:8080

  • www.vnsextop1.com:8880

  • www.vnsextop1.com:2052

  • www.vnsextop1.com:2082

Mutex
  • CYMgG86Iwbj7

Attributes
  • delay

    0

  • install

    true

  • install_file

    prbtn.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\17de6ca7adff24ddb9d4d081f21b77d40fdcc7b93e5d8dcff4d1b6ee08e654f5.exe
    "C:\Users\Admin\AppData\Local\Temp\17de6ca7adff24ddb9d4d081f21b77d40fdcc7b93e5d8dcff4d1b6ee08e654f5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "prbtn" /tr '"C:\Users\Admin\AppData\Roaming\prbtn.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3408
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "prbtn" /tr '"C:\Users\Admin\AppData\Roaming\prbtn.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3288
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDA97.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5232
      • C:\Users\Admin\AppData\Roaming\prbtn.exe
        "C:\Users\Admin\AppData\Roaming\prbtn.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4496
  • C:\Users\Admin\AppData\Roaming\prbtn.exe
    "C:\Users\Admin\AppData\Roaming\prbtn.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5520
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3472

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmpDA97.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmpDA97.tmp.bat
          • Size 149B
          • SHA256 fb45156917f9b6703f7441ca5e0ac7744fd131e0f1f981c0bc6100761e2c8665
          • MD5 SHA1 SHA512 TLSH

          prbtn.exe

          • Path C:\Users\Admin\AppData\Roaming\prbtn.exe
          • Size 45KB
          • SHA256 17de6ca7adff24ddb9d4d081f21b77d40fdcc7b93e5d8dcff4d1b6ee08e654f5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2720-0-0x0000000074592000-0x0000000074593000-memory.dmp

          memory/2720-1-0x00000000003C0000-0x00000000003D2000-memory.dmp

          memory/2720-2-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/2720-3-0x0000000004E10000-0x0000000004EAC000-memory.dmp

          memory/2720-8-0x0000000074580000-0x0000000074D3C000-memory.dmp

          memory/5520-12-0x0000000074410000-0x0000000074BCC000-memory.dmp

          memory/5520-14-0x0000000074410000-0x0000000074BCC000-memory.dmp