Overview

overview

10

Static

static

INVOICE.PDF.exe

windows7_x64

10

INVOICE.PDF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 14:12

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General

  • Target

    INVOICE.PDF.exe

  • Size

    776KB

  • MD5

    7ad2834ccb90213af7c5c4411eb04253

  • SHA1

    ff5fa39d9302c64669c65f37547915b4252f42ba

  • SHA256

    b8a6818ebadd26de05a88a3938a3fc3ee593184be5448af728f5ff07e7ca2ddc

  • SHA512

    438999d2d64915ebd2f4883f7301221c641cf041e3afdb455af3f5de1f1e763d7552201366cb9b26ecf03f6ac6eba32150ff05cfd94af12fed5c22573b5cb26b

Score
10/10
matiexcollectionkeyloggerspywarestealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/bot1361411551:AAEXdgrDr6ha4cqLOl8OniveGLUmuvmAAbU/sendMessage?chat_id=1342486330

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • 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.

    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 3 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 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\INVOICE.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Users\Admin\AppData\Local\Temp\INVOICE.PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE.PDF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5076
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 2036
        3⤵
        • Program crash
        PID:3372
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5076 -ip 5076
    1⤵
      PID:1688

    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/4060-133-0x0000000002470000-0x0000000002481000-memory.dmp
      Filesize

      68KB

      Download
    • memory/5076-130-0x0000000000000000-mapping.dmp
      Download
    • memory/5076-132-0x0000000000970000-0x00000000009E0000-memory.dmp
      Filesize

      448KB

      Download
    • memory/5076-131-0x0000000000970000-0x00000000009E0000-memory.dmp
      Filesize

      448KB

      Download
    • memory/5076-134-0x0000000004AD0000-0x0000000004B6C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/5076-135-0x0000000004B70000-0x0000000005114000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/5076-136-0x0000000005120000-0x0000000005186000-memory.dmp
      Filesize

      408KB

      Download
    • memory/5076-137-0x00000000062D0000-0x0000000006492000-memory.dmp
      Filesize

      1.8MB

      Download