Analysis

  • max time kernel
    175s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-04-2022 02:31

General

  • Target

    Payment.exe

  • Size

    741KB

  • MD5

    60719dfa735801f3bd3f63b2998e7f76

  • SHA1

    b50765a9e7e5bf5667d1e81ca354e7da32d6990c

  • SHA256

    128077c7c2616b13946e1356a9cf02b6b26433c68a211463eb89dc92cca802b8

  • SHA512

    b973f963f3fe880b41e6c821b25a62810b28f424f34bf8a894766f13ef5732671970ef5e788ce73ce358814aad87c0e4ec168d2a71713e4f6964b2a42897ebd1

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    ebop.website
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    P@ssw0rdP@ssw0rd

Signatures

  • Matiex

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

  • Matiex Main Payload 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 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:2040
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4612

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2040-130-0x0000000000FB0000-0x0000000001070000-memory.dmp

    Filesize

    768KB

  • memory/2040-131-0x00000000059B0000-0x0000000005A42000-memory.dmp

    Filesize

    584KB

  • memory/2040-133-0x0000000006300000-0x0000000006303000-memory.dmp

    Filesize

    12KB

  • memory/4612-132-0x0000000000000000-mapping.dmp

  • memory/4612-134-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/4612-135-0x00000000057B0000-0x0000000005D54000-memory.dmp

    Filesize

    5.6MB

  • memory/4612-136-0x00000000052A0000-0x000000000533C000-memory.dmp

    Filesize

    624KB

  • memory/4612-137-0x0000000005340000-0x00000000053A6000-memory.dmp

    Filesize

    408KB

  • memory/4612-138-0x0000000006600000-0x000000000660A000-memory.dmp

    Filesize

    40KB

  • memory/4612-139-0x0000000006DC0000-0x0000000006F82000-memory.dmp

    Filesize

    1.8MB

  • memory/4612-140-0x00000000051D3000-0x00000000051D5000-memory.dmp

    Filesize

    8KB