General

  • Target
    nfe_toweb_brasil_ltda_epp.vbs
  • Size 45KB
  • Sample261028-mt7fcay18m
  • SHA256 8f32d30e23cdf103109afc2c5d3d4445f95c25ca0ce44cbf60cd014a100beb09
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://www.python.org/ftp/python/3.12.3/python-3.12.3-embed-amd64.zip

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://bootstrap.pypa.io/get-pip.py

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://reiventarseuconhecimento.com/mto2/ceveltreinament.py

Targets

    • Target
      nfe_toweb_brasil_ltda_epp.vbs
    • Size 45KB
    • SHA256 8f32d30e23cdf103109afc2c5d3d4445f95c25ca0ce44cbf60cd014a100beb09
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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.

MITRE ATT&CK Enterprise v16

Tasks