Overview

overview

10

Static

static

f635d6dbb8...b0.exe

windows7_x64

10

f635d6dbb8...b0.exe

windows10_x64

3

Sharing

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General

  • Target
    f635d6dbb86f7d946250514c9ccb7db0.exe
  • Size 256KB
  • Sample200709-a2332kptae
  • SHA256 25babc8d9be2e6cc3cdd408fac70bea0d9c3f0c3480945d3bcb374c88b6f82c1
  • MD5 SHA1 SHA512
Score
10/10
asyncratquasarevasionpersistenceratspywaretrojan

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.7B

C2

  • null:null

Mutex

  • AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    EfA8oEwdphb1PRVOxTe3AN4wESj6UjIj

  • anti_detection

    false

  • autorun

    true

  • bdos

    false

  • delay

    CORONA

  • host

    null

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    https://pastebin.com/raw/KVXdCZYr

  • port

    null

  • version

    0.5.7B

aes.plain

Targets

    • Target
      f635d6dbb86f7d946250514c9ccb7db0.exe
    • Size 256KB
    • SHA256 25babc8d9be2e6cc3cdd408fac70bea0d9c3f0c3480945d3bcb374c88b6f82c1
    • MD5 SHA1 SHA512
    Score
    10/10
    asyncratquasarevasionpersistenceratspywaretrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Modifies security service

      evasion

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • UAC bypass

      evasiontrojan

    • Windows security bypass

      evasiontrojan

    • Async RAT payload

      rat

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks