General

  • Target
    de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe
  • Size 866KB
  • Sample240629-b88feaybld
  • SHA256 de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.7B

Botnet
  • Default

C2
  • hgjvhnfgg.duckdns.org:8057

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target
      de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe
    • Size 866KB
    • SHA256 de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

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

    • Modifies WinLogon for persistence

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables embedding command execution via IExecuteCommand COM object

    • Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

    • Detects executables potentially checking for WinJail sandbox window

    • Detects file containing reversed ASEP Autorun registry keys

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks