Analysis

  • max time kernel
    110s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    05/10/2020, 16:30

General

  • Target
    Versanddetails.exe
  • Size 803KB
  • Sample201005-c2ptpchrve
  • SHA256 fac7a4da80de5a4be0eb4b0b6e5663c1a005b92688956219094fb33f33e791b2
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • matiex

Credentials
  • Protocol

    smtp

  • Host

    ebop.website

  • Port

    587

  • Password

    P@ssw0rdP@ssw0rd

Signatures

  • Matiex

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

  • Matiex Main Payload 2 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Versanddetails.exe
    "C:\Users\Admin\AppData\Local\Temp\Versanddetails.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3684
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1768

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1768-6-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/1768-8-0x00000000735B0000-0x0000000073C9E000-memory.dmp

        memory/1768-11-0x0000000005830000-0x0000000005831000-memory.dmp

        memory/1768-12-0x00000000053D0000-0x00000000053D1000-memory.dmp

        memory/1768-13-0x0000000005470000-0x0000000005471000-memory.dmp

        memory/1768-15-0x0000000006EF0000-0x0000000006EF1000-memory.dmp

        memory/1768-16-0x0000000006B30000-0x0000000006B31000-memory.dmp

        memory/3684-0-0x00000000735C0000-0x0000000073CAE000-memory.dmp

        memory/3684-1-0x0000000000FD0000-0x0000000000FD1000-memory.dmp

        memory/3684-3-0x0000000005890000-0x0000000005891000-memory.dmp

        memory/3684-4-0x0000000005F90000-0x0000000006003000-memory.dmp