Overview

overview

10

Static

static

10

window-def...te.exe

windows7_x64

10

window-def...te.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    115s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 01:43

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General

  • Target

    window-defender-update.exe

  • Size

    425KB

  • MD5

    5521b99b3fddfd85d4e3deecd76ca528

  • SHA1

    2d09ed2e854b11ec79dfd700c2c92d8b1b19fda3

  • SHA256

    f8506d8f2b01e7443ce001edb1bf9bd307bcd8f8bcd57746d4472f8027fae489

  • SHA512

    49eda27adb9f2a27710a8b472913ab02e71bbeedf35ad99f119daf4b4191c77f9dca692d74496ddc2322b93c71b5fe7299104582ea7d1c6743ae02418a67e664

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 local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • 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.

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 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⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1232
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1232 -s 1264
      2⤵
      • Program crash
      PID:2032

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2
T1081

Discovery

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/1232-54-0x00000000013A0000-0x0000000001410000-memory.dmp
    Filesize

    448KB

    Download
  • memory/2032-55-0x0000000000000000-mapping.dmp
    Download