Overview

overview

10

Static

static

er.exe

windows7_x64

10

er.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    25-01-2021 18:56

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General

  • Target

    er.exe

  • Size

    24KB

  • MD5

    612be75dd32e0576d23e8188afd4a489

  • SHA1

    4fb53cf9f43b8d6ab16577c98aa7bbba5986b296

  • SHA256

    b37892c9f8b0b73345bd8f5b47faa274495f1f7b986013f62a4a005ed40b4db4

  • SHA512

    c7b2e326c90f0696babfa621202924553671f75cb2cd86970c00e156b9e5d3290b9494e9ece7825f9f5b0f876ae509a1e50c43ab7b88ebeaebd5c5512643e2f8

Score
10/10
matiexkeyloggerstealer

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    ckfashion.shop
  • Port:
    26
  • Username:
    [email protected]
  • Password:
    123Mat+++

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • Matiex Main Payload 2 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\er.exe
    "C:\Users\Admin\AppData\Local\Temp\er.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:496
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      2⤵
        PID:4076
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3160
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:1344

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/496-2-0x0000000073D40000-0x000000007442E000-memory.dmp
        Filesize

        6.9MB

        Download
      • memory/496-3-0x0000000000BE0000-0x0000000000BE1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/496-5-0x0000000005440000-0x0000000005441000-memory.dmp
        Filesize

        4KB

        Download
      • memory/496-6-0x0000000005530000-0x0000000005531000-memory.dmp
        Filesize

        4KB

        Download
      • memory/496-7-0x0000000005F50000-0x0000000005F51000-memory.dmp
        Filesize

        4KB

        Download
      • memory/1344-18-0x0000000000000000-mapping.dmp
        Download
      • memory/3160-13-0x00000000055C0000-0x00000000055C1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3160-10-0x0000000073D40000-0x000000007442E000-memory.dmp
        Filesize

        6.9MB

        Download
      • memory/3160-9-0x000000000047213E-mapping.dmp
        Download
      • memory/3160-14-0x0000000005520000-0x0000000005521000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3160-15-0x00000000030A0000-0x00000000030A1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3160-16-0x00000000068D0000-0x00000000068D1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3160-17-0x0000000006DD0000-0x0000000006DD1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3160-8-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

        Download
      • memory/3160-19-0x00000000067B0000-0x00000000067B1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/3160-20-0x0000000007050000-0x0000000007051000-memory.dmp
        Filesize

        4KB

        Download