Analysis

  • max time kernel
    38s
  • max time network
    91s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2023 20:31

General

  • Target

    b368b4f8ba0c292896547adf2a35f967.exe

  • Size

    704KB

  • MD5

    b368b4f8ba0c292896547adf2a35f967

  • SHA1

    02db58020730eb1fb7169c3d4ccc6f17aa3b6037

  • SHA256

    2e11a21dab7ad117856ecb9f80cdb22241bf6b4a0f231e05483bdddf997fbae5

  • SHA512

    0412f02ee3feb86daca01131d7f7fd52037ed6484edd8188c62eeb9c43db7fa6443d5ce9ed3b9c2daba70cadba8d71badecb6dc2670c85b64a6829e80e194d11

  • SSDEEP

    12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZWpfb:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pcN

Malware Config

Signatures

  • Matiex

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

  • Matiex Main payload 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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
  • 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.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b368b4f8ba0c292896547adf2a35f967.exe
    "C:\Users\Admin\AppData\Local\Temp\b368b4f8ba0c292896547adf2a35f967.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1716
    • C:\Users\Admin\AppData\Local\Temp\b368b4f8ba0c292896547adf2a35f967.exe
      "C:\Users\Admin\AppData\Local\Temp\b368b4f8ba0c292896547adf2a35f967.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1736
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 1648
        3⤵
        • Program crash
        PID:1780

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml
    Filesize

    1KB

    MD5

    dea070bce66d1fbc1feb65e7103d19dd

    SHA1

    9ec51066ac265a0fdf400d26d19cb844a01e4d27

    SHA256

    d2262af5148f92c65ca685d63e78873dd781ce5dd220a3f16407b58213304386

    SHA512

    97574217239bfb9f3c15141b25b2576db45d72db2c68b6b41d8c1e55b462b03ce7420553ac4df6b99c636358ce18d553a9be59fad802451ce1ba1aad5a5a0df6

  • memory/1160-57-0x00000000002FA000-0x0000000000300000-memory.dmp
    Filesize

    24KB

  • memory/1716-58-0x0000000000000000-mapping.dmp
  • memory/1736-55-0x000000000040188B-mapping.dmp
  • memory/1736-56-0x0000000075A91000-0x0000000075A93000-memory.dmp
    Filesize

    8KB

  • memory/1736-59-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/1736-61-0x0000000000530000-0x00000000005A2000-memory.dmp
    Filesize

    456KB

  • memory/1780-62-0x0000000000000000-mapping.dmp
  • memory/1900-54-0x0000000000000000-mapping.dmp