Analysis

  • max time kernel
    91s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-01-2023 16:47

General

  • Target

    60d41052671306acf238435466b653a1.exe

  • Size

    576KB

  • MD5

    60d41052671306acf238435466b653a1

  • SHA1

    1fe0bcdd0af918c6431ae90afb735b81dad8bd84

  • SHA256

    3f86682b654d4b3574ea76e5f61b52e7d52ef2bb9c5f7213fb81db750448b114

  • SHA512

    7fcfb5b429bb2d46c00a3b3a456eca9e8c2c3375c76abb4421c1cca53c12e3f565a3b699e29042340f47fdf79681c62f33a1c62d8dcb12af68793d053ae2f8c7

  • SSDEEP

    12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZo:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pc5

Malware Config

Signatures

  • Matiex

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

  • Matiex Main payload 1 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 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\60d41052671306acf238435466b653a1.exe
    "C:\Users\Admin\AppData\Local\Temp\60d41052671306acf238435466b653a1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4488
    • 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:1176
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
        3⤵
        • Creates scheduled task(s)
        PID:3444
    • C:\Users\Admin\AppData\Local\Temp\60d41052671306acf238435466b653a1.exe
      "C:\Users\Admin\AppData\Local\Temp\60d41052671306acf238435466b653a1.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2096
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1904
        3⤵
        • Program crash
        PID:456
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2096 -ip 2096
    1⤵
      PID:4744

    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

      284af8cf030ab5d0003cf68a44204bc5

      SHA1

      4010bf27e5ce1177ac18fac30b5c1d6ac6a51cf5

      SHA256

      97024db9c8cab0b562c8dbabfd8bfc615d99af32c00fe1e81084ca2c262a43f4

      SHA512

      19cb855bb03da299d77bbfc28d41710c57013d7de5dcd55b70dc0af9a8799ad3472386c9375103a5bb7ccc1d51759fb188e0b3a7d96a8ab918bf341e7f6e1cd4

    • memory/1176-132-0x0000000000000000-mapping.dmp
    • memory/2096-133-0x0000000000000000-mapping.dmp
    • memory/2096-138-0x00000000054F0000-0x000000000558C000-memory.dmp
      Filesize

      624KB

    • memory/2096-139-0x0000000000400000-0x0000000000482000-memory.dmp
      Filesize

      520KB

    • memory/2096-140-0x0000000005B40000-0x00000000060E4000-memory.dmp
      Filesize

      5.6MB

    • memory/2096-141-0x0000000005600000-0x0000000005666000-memory.dmp
      Filesize

      408KB

    • memory/3444-135-0x0000000000000000-mapping.dmp
    • memory/4488-134-0x000000000133A000-0x0000000001340000-memory.dmp
      Filesize

      24KB

    • memory/4488-136-0x000000000133A000-0x0000000001340000-memory.dmp
      Filesize

      24KB