General

  • Target
    e0b04e8988248b327bde20ad36087876e6c2681dcf890748b107d686ca90ecd1
  • Size 894KB
  • Sample220221-lscc5sagen
  • SHA256 e0b04e8988248b327bde20ad36087876e6c2681dcf890748b107d686ca90ecd1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.privateemail.com

  • Port

    587

  • Password

    Nigerian99

Extracted

Family
  • matiex

Credentials
  • Protocol

    smtp

  • Host

    smtp.privateemail.com

  • Port

    587

  • Password

    Nigerian99

Targets

    • Target
      1u0Zwj9C2xbMA6p.exe
    • Size 1.2MB
    • SHA256 b2196e769c2ab067096df011dfa35bc9d02b594211b610b84d833d3a152ce3f4
    • MD5 SHA1 SHA512
    • Matiex

      Matiex is a keylogger and infostealer first seen in July 2020.

    • Matiex Main Payload

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • Checks computer location settings

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

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • 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 SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks