Analysis

  • max time kernel
    31s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    18/12/2020, 16:57

General

  • Target
    d95bab4390145e6ed0e3638c0f978b01.exe
  • Size 530KB
  • Sample201218-tzz7rbg7ys
  • SHA256 d45c6e62e99101aae9217d090ed7ecf7c2e0a67d0010d7db6cf8c60a44a0b8b8
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    srvc13.turhost.com

  • Port

    587

  • Password

    italik2015

Extracted

Family
  • matiex

Credentials
  • Protocol

    smtp

  • Host

    srvc13.turhost.com

  • Port

    587

  • Password

    italik2015

Signatures

  • Matiex

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

  • Matiex Main Payload 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d95bab4390145e6ed0e3638c0f978b01.exe
    "C:\Users\Admin\AppData\Local\Temp\d95bab4390145e6ed0e3638c0f978b01.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
        3⤵
        • Creates scheduled task(s)
        PID:2004
    • C:\Users\Admin\AppData\Local\Temp\d95bab4390145e6ed0e3638c0f978b01.exe
      "C:\Users\Admin\AppData\Local\Temp\d95bab4390145e6ed0e3638c0f978b01.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1060

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2016-3-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/2016-5-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/2016-8-0x00000000747D0000-0x0000000074EBE000-memory.dmp

          memory/2016-9-0x00000000009A0000-0x0000000000A0D000-memory.dmp