Overview

overview

10

Static

static

Purchase O...df.exe

windows7_x64

10

Purchase O...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    92s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:47

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General

  • Target

    Purchase Order.pdf.exe

  • Size

    361KB

  • MD5

    206f4433e9871eb640d993237c23933e

  • SHA1

    c915f546298de42e3f5b7c1eb674dc4d0425df04

  • SHA256

    074c065bacbb7880ce7f0d4d2ef0794398bf9152beb9a59d6d7f096b6e94e44d

  • SHA512

    49f0cb6eac3be11aea716f7038e31626804734e41cf0ef5cd62e52af6297eba4046501cf01c42f97b2d247c2111f4d962ccc9ada4e1ba52ad8cc932eab7a735a

Score
10/10
matiexcollectionkeyloggerspywarestealer

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    k4kuml@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 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.

  • 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.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TluNTUKXvqN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC61F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1560
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:320
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 320 -s 2028
        3⤵
        • Program crash
        PID:1920
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 320 -ip 320
    1⤵
      PID:3104

    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.pdf.exe.log
      Filesize

      412B

      MD5

      ad1c7f6525cfeb54c0487efd38b0e26c

      SHA1

      ed3da94723ac7e3828a9e93d68418bb810592f3b

      SHA256

      0a534a3d0fa82e6a427164c5f6e702cac7e4afc9967af9bc5ddba4f84ab33276

      SHA512

      48d625e6be5391d91d95c2850226fe39bb2411cb72139797699cfe126e6b066182e83950a8ea67e63b64a66b0d45f58d8bc97cab0363d55c2fd88c0d1d28009c

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\tmpC61F.tmp
      Filesize

      1KB

      MD5

      70c861ff4023a7efce2ec0ca3ae5d7f3

      SHA1

      bf08dff1c4469d445b393717c7e19fa941745c0b

      SHA256

      bddb27d0357c8708003b35c663fc7a77f17489e1afb5e7db01cce7bd1e44cc96

      SHA512

      39f49dcd6b4d7edf6394714c661ad84893cbc501ee91f0dea35d0888784c5a2e17f15f1701b99ffd3fe8660fd3c9c4bda1f940da02112eb2eb88e3a07fcf43d3

      Download Submit
    • memory/320-135-0x0000000000000000-mapping.dmp
      Download
    • memory/320-136-0x0000000000400000-0x0000000000474000-memory.dmp
      Filesize

      464KB

      Download
    • memory/320-138-0x0000000005710000-0x0000000005CB4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/320-139-0x00000000050B0000-0x0000000005116000-memory.dmp
      Filesize

      408KB

      Download
    • memory/1560-133-0x0000000000000000-mapping.dmp
      Download
    • memory/3216-130-0x0000000000200000-0x0000000000260000-memory.dmp
      Filesize

      384KB

      Download
    • memory/3216-131-0x0000000004F20000-0x0000000004FBC000-memory.dmp
      Filesize

      624KB

      Download
    • memory/3216-132-0x0000000005060000-0x00000000050F2000-memory.dmp
      Filesize

      584KB

      Download