Overview

overview

10

Static

static

Purchase O...df.exe

windows7_x64

3

Purchase O...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:30

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General

  • Target

    Purchase Order 251177.pdf.exe

  • Size

    620KB

  • MD5

    de2cb62deae3547dc782d3229b4bdd52

  • SHA1

    ed48de586e986ec9cc8eef85c04b735872cb1af8

  • SHA256

    798757b5cf663c8a4f19074ad76705d66ed8295a4b66d44ee418971391c00c2d

  • SHA512

    c44fa8b9161ba539e6f2fe265641883005ac5b8372bd3a9fdabe60b75374cdf8049ed7d9e75b2283be5654b55887ceb95246f696e6abfa41217f4710da25aaeb

Score
10/10
matiexcollectionkeyloggerspywarestealer

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    sgssafety@yandex.com
  • Password:
    GOOD123456

Signatures

  • Matiex

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

    stealerkeyloggermatiex
  • Matiex Main Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order 251177.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order 251177.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4492
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KFIPySp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp639C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3540
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order 251177.pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1148
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1148 -s 1744
        3⤵
        • Program crash
        PID:1480
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1148 -ip 1148
    1⤵
      PID:5024

    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

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    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

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Order 251177.pdf.exe.log
      Filesize

      1KB

      MD5

      400f1cc1a0a0ce1cdabda365ab3368ce

      SHA1

      1ecf683f14271d84f3b6063493dce00ff5f42075

      SHA256

      c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

      SHA512

      14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\tmp639C.tmp
      Filesize

      1KB

      MD5

      84ab7750b31c730a5a30d80291c84a0b

      SHA1

      23a3d6c3f30033042a574b0df129cc32f709bd7e

      SHA256

      4b940d8bd5d20c27d8d1dfeec8ef98f351661463869d72698774efb24e97d3b3

      SHA512

      36b8c4c237d771bc649504003aac442b33ec938ef7fe4622c307d781c45d2c63b287be1e2d0739694ead5b5dfcd2f36e7dfc5350257b53dfe80fcd36ed668813

      Download Submit
    • memory/1148-137-0x0000000000000000-mapping.dmp
      Download
    • memory/1148-138-0x0000000000400000-0x0000000000474000-memory.dmp
      Filesize

      464KB

      Download
    • memory/1148-140-0x0000000004F20000-0x0000000004F86000-memory.dmp
      Filesize

      408KB

      Download
    • memory/3540-135-0x0000000000000000-mapping.dmp
      Download
    • memory/4492-130-0x0000000000030000-0x00000000000D0000-memory.dmp
      Filesize

      640KB

      Download
    • memory/4492-131-0x0000000005260000-0x0000000005804000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/4492-132-0x0000000004E90000-0x0000000004F22000-memory.dmp
      Filesize

      584KB

      Download
    • memory/4492-133-0x0000000004E10000-0x0000000004E1A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/4492-134-0x000000000D1A0000-0x000000000D23C000-memory.dmp
      Filesize

      624KB

      Download