General

  • Target

    23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe

  • Size

    190KB

  • Sample

    220309-s75rkaabc4

  • MD5

    d7efd8fe990580ffed407998373bcb36

  • SHA1

    4d73d3e0509781c95ff7dea39e598b258e1de893

  • SHA256

    23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe

  • SHA512

    0df7b4b66726ded97930bfe283c4e0ec21256ea4cc4c321e8994558a8aed2d16a4af276630ec02054fa61797cf137778c26020dffa5a223271b8e4eba14a63a7

Malware Config

Targets

    • Target

      23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe

    • Size

      190KB

    • MD5

      d7efd8fe990580ffed407998373bcb36

    • SHA1

      4d73d3e0509781c95ff7dea39e598b258e1de893

    • SHA256

      23f3c01c7e38b1a3677aef5987df95284e8b038a14a89eb77e0b77d162cfd6fe

    • SHA512

      0df7b4b66726ded97930bfe283c4e0ec21256ea4cc4c321e8994558a8aed2d16a4af276630ec02054fa61797cf137778c26020dffa5a223271b8e4eba14a63a7

    • Matiex

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

    • Matiex Main Payload

    • Drops startup file

    • 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 Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks