Overview

overview

10

Static

static

Tax Invoic...40.exe

windows7_x64

10

Tax Invoic...40.exe

windows10_x64

10

Analysis

  • max time kernel
    99s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29-12-2020 07:07

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    Tax Invoices IN102738 IN102739 IN102740.exe

  • Size

    934KB

  • MD5

    30db124ff404f295e6828615ceffd149

  • SHA1

    9a36a1df328103d28eba4bdb4eb7fce4241e41a3

  • SHA256

    13da94ec76f6fd3fba14bbaca306ee7fd26fe8ddd40858d63f639a97d3807226

  • SHA512

    50333e3a99fe70ad3ce42eaec9b678eac525bf38b7847755367e7eecab4a9f4deadbbf6a59bda2e022bd060e0e7b97de60cd6dd228a204f3567b90f907b6c917

Score
10/10
matiexkeyloggerspywarestealer

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.zavidovici.ba
  • Port:
    587
  • Username:
    opcina.zavidovici@zavidovici.ba
  • Password:
    12Opc21!

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    mail.zavidovici.ba
  • Port:
    587
  • Username:
    opcina.zavidovici@zavidovici.ba
  • Password:
    12Opc21!

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • Matiex Main Payload 2 IoCs
  • 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 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
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Tax Invoices IN102738 IN102739 IN102740.exe
    "C:\Users\Admin\AppData\Local\Temp\Tax Invoices IN102738 IN102739 IN102740.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KJWimAwEnS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3941.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1892
    • C:\Users\Admin\AppData\Local\Temp\Tax Invoices IN102738 IN102739 IN102740.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3564
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:2080

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Tax Invoices IN102738 IN102739 IN102740.exe.log
      MD5

      b4f7a6a57cb46d94b72410eb6a6d45a9

      SHA1

      69f3596ffa027202d391444b769ceea0ae14c5f7

      SHA256

      23994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b

      SHA512

      be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\tmp3941.tmp
      MD5

      209151ddeb07e08d8f62f7340b503564

      SHA1

      c30a3885a0a4c829614d4874b830d1a5646ba3dc

      SHA256

      78070998def5fefd7c586f158a1e07bddd887a1033ea24166dc32fac45232e34

      SHA512

      8156c34d73bbc18fe461ae572ae3b0f18e386b58f0629cfac2db7e35d22445bcc94ce79dcdb0b4ad2a107ff918ed206271e2ca690c7f1fa68d9b86568d17adb0

      Download Submit
    • memory/60-7-0x0000000007760000-0x0000000007761000-memory.dmp
      Filesize

      4KB

      Download
    • memory/60-5-0x0000000007B90000-0x0000000007B91000-memory.dmp
      Filesize

      4KB

      Download
    • memory/60-2-0x0000000073AD0000-0x00000000741BE000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/60-8-0x000000000A010000-0x000000000A011000-memory.dmp
      Filesize

      4KB

      Download
    • memory/60-9-0x0000000009F70000-0x0000000009F74000-memory.dmp
      Filesize

      16KB

      Download
    • memory/60-10-0x0000000009090000-0x0000000009134000-memory.dmp
      Filesize

      656KB

      Download
    • memory/60-3-0x00000000004D0000-0x00000000004D1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/60-6-0x0000000007770000-0x0000000007771000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1892-11-0x0000000000000000-mapping.dmp
      Download
    • memory/2080-22-0x0000000000000000-mapping.dmp
      Download
    • memory/3564-13-0x0000000000400000-0x0000000000476000-memory.dmp
      Filesize

      472KB

      Download
    • memory/3564-14-0x000000000047036E-mapping.dmp
      Download
    • memory/3564-16-0x0000000073AD0000-0x00000000741BE000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/3564-20-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/3564-23-0x00000000067E0000-0x00000000067E1000-memory.dmp
      Filesize

      4KB

      Download