Overview

overview

10

Static

static

a00b538eec...26.exe

windows7_x64

9

a00b538eec...26.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-04-2022 12:24

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General

  • Target

    a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe

  • Size

    569KB

  • MD5

    a4cefbd7724d9941c429a57493ded1c1

  • SHA1

    e24ec79da04b1b8edcb7c26f5e2bb041e2aff400

  • SHA256

    a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26

  • SHA512

    bdddd0a1716eb32ed6d055c4e506770c34cb1d0532197a2cfd3278e140da39bb18616eb800e4065409f1aea19bc8677382840edfe2b8ac56466401d10382d8f1

Score
10/10
matiexmetastealercollectionevasionkeyloggerspywarestealer

Malware Config

Extracted

Family

matiex

C2

https://api.telegram.org/[email protected]/sendMessage?chat_id=dakar@20

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • Matiex Main Payload 1 IoCs
  • Meta Stealer Stealer

    Meta Stealer steals passwords stored in browsers, written in C++.

    stealermetastealer
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 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\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
    "C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\a00b538eec95df8ee432d6a97aa485caaae707b47dec573d8f6943b4eaef0b26.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 1728
        3⤵
        • Program crash
        PID:4040
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4776 -ip 4776
    1⤵
      PID:228

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    2
    T1082

    Peripheral Device Discovery

    1
    T1120

    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/1684-130-0x0000000000FB0000-0x0000000001044000-memory.dmp
      Filesize

      592KB

      Download
    • memory/1684-131-0x00000000060D0000-0x0000000006674000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/1684-132-0x0000000005A10000-0x0000000005AA2000-memory.dmp
      Filesize

      584KB

      Download
    • memory/1684-133-0x00000000059F0000-0x00000000059FA000-memory.dmp
      Filesize

      40KB

      Download
    • memory/1684-134-0x00000000096A0000-0x0000000009BCC000-memory.dmp
      Filesize

      5.2MB

      Download
    • memory/1684-135-0x0000000009FA0000-0x000000000A03C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/1684-136-0x000000000A040000-0x000000000A0A6000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4776-137-0x0000000000000000-mapping.dmp
      Download
    • memory/4776-138-0x0000000000400000-0x0000000000476000-memory.dmp
      Filesize

      472KB

      Download