General

  • Target
    31a6818ba439d39bdae897b77513d3a92d27bc3f93b5b1a5aaf1d77ec5e49738.vbs
  • Size 22KB
  • Sample240601-bjcbnscc8t
  • SHA256 31a6818ba439d39bdae897b77513d3a92d27bc3f93b5b1a5aaf1d77ec5e49738
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      31a6818ba439d39bdae897b77513d3a92d27bc3f93b5b1a5aaf1d77ec5e49738.vbs
    • Size 22KB
    • SHA256 31a6818ba439d39bdae897b77513d3a92d27bc3f93b5b1a5aaf1d77ec5e49738
    • MD5 SHA1 SHA512 SSDEEP
    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks