Overview

overview

10

Static

static

INVOICE.PDF.exe

windows7_x64

10

INVOICE.PDF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    40s
  • max time network
    90s
  • platform
    windows7_x64
  • resource
    win7-20220414-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 1 IoCs
  • Suspicious behavior: MapViewOfSection 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\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:1688
    • 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
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1880
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1880 -s 1772
        3⤵
        • Program crash
        PID:1936

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/1688-54-0x0000000076391000-0x0000000076393000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1688-59-0x0000000000250000-0x0000000000261000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1880-55-0x00000000004EBEC0-mapping.dmp
    Download
  • memory/1880-57-0x00000000004F0000-0x0000000000560000-memory.dmp
    Filesize

    448KB

    Download
  • memory/1880-56-0x00000000004F0000-0x0000000000560000-memory.dmp
    Filesize

    448KB

    Download
  • memory/1936-60-0x0000000000000000-mapping.dmp
    Download