General

  • Target
    70A12162020.doc
  • Size 526KB
  • Sample201217-fnbxtatd6s
  • SHA256 320592aa53514c7fd425f4c691e4be802ca964955d5a6fdd960a8725c36737b4
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      70A12162020.doc
    • Size 526KB
    • SHA256 320592aa53514c7fd425f4c691e4be802ca964955d5a6fdd960a8725c36737b4
    • MD5 SHA1 SHA512
    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger Main Payload

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks