General

  • Target
    catlavan.msi
  • Size 6.0MB
  • Sample260729-n94j3avybs
  • SHA256 81b8d0465187fdb51bbf7712f071b6acd77464258d0fc1e08fe66b905224fa25
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      catlavan.msi
    • Size 6.0MB
    • SHA256 81b8d0465187fdb51bbf7712f071b6acd77464258d0fc1e08fe66b905224fa25
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects DonutLoader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • Executes a VBScript file via the Windows Script Host.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks