Analysis

  • max time kernel
    111s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    12/10/2020, 06:20

General

  • Target
    Payment.exe
  • Size 741KB
  • Sample201012-fb5gg82cn6
  • SHA256 c578f89d2e9d40571b7abb4839a07f019dcc3bfc37705ee8d9cccfe306432463
  • 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\Payment.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3740
    • 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:3516

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3516-6-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/3516-8-0x0000000073AF0000-0x00000000741DE000-memory.dmp

        memory/3516-11-0x0000000005850000-0x0000000005851000-memory.dmp

        memory/3516-12-0x0000000005350000-0x0000000005351000-memory.dmp

        memory/3516-13-0x00000000052C0000-0x00000000052C1000-memory.dmp

        memory/3516-15-0x0000000006A40000-0x0000000006A41000-memory.dmp

        memory/3516-16-0x0000000006E00000-0x0000000006E01000-memory.dmp

        memory/3740-0-0x0000000073B90000-0x000000007427E000-memory.dmp

        memory/3740-1-0x0000000000840000-0x0000000000841000-memory.dmp

        memory/3740-3-0x0000000005160000-0x0000000005161000-memory.dmp

        memory/3740-4-0x00000000057A0000-0x0000000005813000-memory.dmp