Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 15:41

General

  • Target
    2ec267147e5904a03699fa12d65fd3ee212ddaef9dfbbccf1f90c2f6d70b594b.exe
  • Size 45KB
  • Sample260601-s441vsaz2n
  • SHA256 2ec267147e5904a03699fa12d65fd3ee212ddaef9dfbbccf1f90c2f6d70b594b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • vailon.blog:443

  • vailon.blog:80

  • www.vailon.blog:443

  • www.vailon.blog:80

  • blacklotus.vailon.blog:443

  • blacklotus.vailon.blog:80

  • malware.vailon.blog:443

  • malware.vailon.blog:80

  • conti.vailon.blog:443

  • conti.vailon.blog:80

Mutex
  • WlyN7awK9ByI

Attributes
  • delay

    0

  • install

    true

  • install_file

    8nilxs.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).

  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ec267147e5904a03699fa12d65fd3ee212ddaef9dfbbccf1f90c2f6d70b594b.exe
    "C:\Users\Admin\AppData\Local\Temp\2ec267147e5904a03699fa12d65fd3ee212ddaef9dfbbccf1f90c2f6d70b594b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8nilxs" /tr '"C:\Users\Admin\AppData\Roaming\8nilxs.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "8nilxs" /tr '"C:\Users\Admin\AppData\Roaming\8nilxs.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4552
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC870.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1028
      • C:\Users\Admin\AppData\Roaming\8nilxs.exe
        "C:\Users\Admin\AppData\Roaming\8nilxs.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3492
  • C:\Users\Admin\AppData\Roaming\8nilxs.exe
    "C:\Users\Admin\AppData\Roaming\8nilxs.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3024

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpC870.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpC870.tmp.bat
        • Size 150B
        • SHA256 ef72b1898a9bc1ec7b369c25f309b1136e863f42040473217fc2441251f820f2
        • MD5 SHA1 SHA512 TLSH

        8nilxs.exe

        • Path C:\Users\Admin\AppData\Roaming\8nilxs.exe
        • Size 45KB
        • SHA256 2ec267147e5904a03699fa12d65fd3ee212ddaef9dfbbccf1f90c2f6d70b594b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2164-0-0x0000000000500000-0x0000000000512000-memory.dmp

        memory/2164-1-0x00000000050A0000-0x00000000050B0000-memory.dmp

        memory/2164-2-0x0000000004FE0000-0x000000000507C000-memory.dmp