Analysis

  • max time kernel
    108s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    09/10/2020, 15:43

General

  • Target
    Payment_Zahlung.exe
  • Size 698KB
  • Sample201009-pxplam9vte
  • SHA256 aba7c1c07ed945bc78f128ced4eef1c58253a55e6d31395228322281e791a15f
  • 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_Zahlung.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment_Zahlung.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1036
    • 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:3816

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1036-0-0x0000000073D60000-0x000000007444E000-memory.dmp

        memory/1036-1-0x0000000000B80000-0x0000000000B81000-memory.dmp

        memory/1036-3-0x0000000005410000-0x0000000005411000-memory.dmp

        memory/1036-4-0x0000000005AE0000-0x0000000005B53000-memory.dmp

        memory/3816-6-0x0000000000400000-0x0000000000472000-memory.dmp

        memory/3816-8-0x0000000073D50000-0x000000007443E000-memory.dmp

        memory/3816-11-0x0000000005660000-0x0000000005661000-memory.dmp

        memory/3816-12-0x0000000005160000-0x0000000005161000-memory.dmp

        memory/3816-13-0x00000000050B0000-0x00000000050B1000-memory.dmp

        memory/3816-15-0x0000000006730000-0x0000000006731000-memory.dmp

        memory/3816-16-0x0000000006B60000-0x0000000006B61000-memory.dmp