Overview

overview

10

Static

static

WINDOW-DEF...te.exe

windows7_x64

10

WINDOW-DEF...te.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    162s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:45

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General

  • Target

    WINDOW-DEFENDER_update.exe

  • Size

    297KB

  • MD5

    442f5757df84d4f7f7fb1d7ea822feb9

  • SHA1

    8ea3a6ef71a980a5c530d3d20b875e795dbdda73

  • SHA256

    f1932e7fd5027c22bcc2f2796a2916d3089e70863ccf8c9ca40af01cdf34206f

  • SHA512

    3e64ebf4fcff483a90f411eb9a49179f859f9fc9bcb64f63f753777bd62c9e2383a6ad949f4baa479087f7970e02c0218ef09bdf1b0c6ba67b58f8b2a72bc026

Score
10/10
matiexcollectionkeyloggerspywarestealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1216271892:AAEn1Tw6TUedDgDlack_UbEaK5yRAySruSY/sendMessage?chat_id=1318177442

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • Matiex Main Payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WINDOW-DEFENDER_update.exe
    "C:\Users\Admin\AppData\Local\Temp\WINDOW-DEFENDER_update.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3864
    • C:\Users\Admin\AppData\Local\Temp\WINDOW-DEFENDER_update.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1868
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 1716
        3⤵
        • Program crash
        PID:3564
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1868 -ip 1868
    1⤵
      PID:3632

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/1868-135-0x0000000000000000-mapping.dmp
      Download
    • memory/1868-136-0x0000000000400000-0x0000000000470000-memory.dmp
      Filesize

      448KB

      Download
    • memory/1868-137-0x00000000056A0000-0x0000000005706000-memory.dmp
      Filesize

      408KB

      Download
    • memory/3864-130-0x00000000007E0000-0x0000000000830000-memory.dmp
      Filesize

      320KB

      Download
    • memory/3864-131-0x0000000005780000-0x0000000005D24000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/3864-132-0x00000000051D0000-0x0000000005262000-memory.dmp
      Filesize

      584KB

      Download
    • memory/3864-133-0x0000000005360000-0x000000000536A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/3864-134-0x0000000008E50000-0x0000000008EEC000-memory.dmp
      Filesize

      624KB

      Download