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Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 12:50

General

  • Target

    36bcd0bf1863c84be2cdb2398d205887.exe

  • Size

    396KB

  • MD5

    36bcd0bf1863c84be2cdb2398d205887

  • SHA1

    d8165079d9616a3502a4393e27495644196461f0

  • SHA256

    ecfe749ca04339d05d3356c3be6bd1302aec7774422a905ca5312bebf6df7000

  • SHA512

    2fcf561add267895798a08fbc56fa53fd0e34407792f983d1df39448d309296cf75e877f6ffaf316105d883c55eb7015cb4b0c080bc1f288a9cabd17bbf8252e

  • SSDEEP

    6144:n8WER+4xoaTZAvPT+Rd7bFso13zW4yhUp7v0G9BxQZNONJi3Ymz1g:n8Wwr/T2PT+RFqo1jW4csv0wOng

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 24 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36bcd0bf1863c84be2cdb2398d205887.exe
    "C:\Users\Admin\AppData\Local\Temp\36bcd0bf1863c84be2cdb2398d205887.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:4908
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
        PID:3748
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
        2⤵
          PID:2856

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1236-43-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-70-0x00000000022B0000-0x00000000022B9000-memory.dmp

        Filesize

        36KB

      • memory/1236-9-0x00000000751A0000-0x00000000752FD000-memory.dmp

        Filesize

        1.4MB

      • memory/1236-8-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-10-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-11-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1236-12-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-13-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-20-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1236-19-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-36-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-18-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-16-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-37-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-39-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1236-41-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-44-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-47-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-51-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-50-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-49-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-48-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-46-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-45-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-6-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/1236-4-0x0000000077552000-0x0000000077553000-memory.dmp

        Filesize

        4KB

      • memory/1236-40-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-38-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-54-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-58-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1236-56-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-62-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-64-0x00000000751A0000-0x00000000752FD000-memory.dmp

        Filesize

        1.4MB

      • memory/1236-67-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1236-72-0x00000000751A0000-0x00000000752FD000-memory.dmp

        Filesize

        1.4MB

      • memory/1236-60-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-63-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-73-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-66-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-42-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/1236-71-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1236-69-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB

      • memory/4908-76-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/4908-77-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/4908-65-0x0000000000400000-0x0000000000417000-memory.dmp

        Filesize

        92KB

      • memory/4908-74-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

        Filesize

        4KB

      • memory/4908-75-0x0000000077552000-0x0000000077553000-memory.dmp

        Filesize

        4KB

      • memory/4908-78-0x0000000002F80000-0x0000000002F90000-memory.dmp

        Filesize

        64KB

      • memory/4908-79-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/4908-80-0x0000000002F80000-0x0000000002F90000-memory.dmp

        Filesize

        64KB