Analysis

  • max time kernel
    153s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 14:22

General

  • Target

    File.exe

  • Size

    693KB

  • MD5

    c66a781c007bb89b164c49068e8a5d58

  • SHA1

    fb6cef4cbcdb878b0b95a7fe0850832010d2f2e9

  • SHA256

    f2c8e60f6dea2f01ded10eed11783cd5173650bbc6e14d8ec891f441fea26b42

  • SHA512

    805e0cf784827848a5c1e60d2e9fe032cc4edf7b5677cf2f93ec21d8e499815fc16d8b1b70a29ae7e22481f6e2a5e354d5cffe969a435574431fad8ae998bd43

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    SMTP.gmail.com
  • Port:
    587
  • Username:
    officialmarc54@gmail.com
  • Password:
    blessmelord

Signatures

  • Matiex

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

  • Matiex Main Payload 2 IoCs
  • Drops startup file 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 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\File.exe
    "C:\Users\Admin\AppData\Local\Temp\File.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3096
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:5028
    • C:\Users\Admin\AppData\Local\Temp\File.exe
      "C:\Users\Admin\AppData\Local\Temp\File.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3384
    • C:\Users\Admin\AppData\Local\Temp\File.exe
      "C:\Users\Admin\AppData\Local\Temp\File.exe" 2 3384 240572250
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4436

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

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Downloads

  • memory/3096-131-0x0000000000400000-0x00000000004B4000-memory.dmp
    Filesize

    720KB

  • memory/3384-140-0x0000000006160000-0x0000000006322000-memory.dmp
    Filesize

    1.8MB

  • memory/3384-132-0x0000000000000000-mapping.dmp
  • memory/3384-142-0x0000000006560000-0x000000000656A000-memory.dmp
    Filesize

    40KB

  • memory/3384-134-0x0000000000A90000-0x0000000000B00000-memory.dmp
    Filesize

    448KB

  • memory/3384-135-0x0000000000A90000-0x0000000000B00000-memory.dmp
    Filesize

    448KB

  • memory/3384-141-0x0000000006370000-0x0000000006402000-memory.dmp
    Filesize

    584KB

  • memory/3384-137-0x0000000004A30000-0x0000000004ACC000-memory.dmp
    Filesize

    624KB

  • memory/3384-138-0x0000000004BB0000-0x0000000005154000-memory.dmp
    Filesize

    5.6MB

  • memory/3384-139-0x0000000005160000-0x00000000051C6000-memory.dmp
    Filesize

    408KB

  • memory/4436-133-0x0000000000000000-mapping.dmp
  • memory/4436-136-0x0000000000400000-0x00000000004B4000-memory.dmp
    Filesize

    720KB

  • memory/5028-130-0x0000000000000000-mapping.dmp