Analysis

  • max time kernel
    4294179s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    09-03-2022 14:29

General

  • Target

    8084d00ab4f95726557c2183e07610caf668448e69e4bfed8b925e763b42c9a9.exe

  • Size

    714KB

  • MD5

    c49115957fee15612db753d73b57cce5

  • SHA1

    bb17085140aa44761bae46b209dbd8ac20f6ce4e

  • SHA256

    8084d00ab4f95726557c2183e07610caf668448e69e4bfed8b925e763b42c9a9

  • SHA512

    b4c4c59816b19c01fe61bebb364b5901e75f0704f9c98bcac1fe7292043175e5b21c9208f09a119ce2fea4e0ecdec535a7e639565a9daff05f73d34994601bd8

Malware Config

Signatures

  • Matiex

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

  • Matiex Main Payload 3 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 1 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\8084d00ab4f95726557c2183e07610caf668448e69e4bfed8b925e763b42c9a9.exe
    "C:\Users\Admin\AppData\Local\Temp\8084d00ab4f95726557c2183e07610caf668448e69e4bfed8b925e763b42c9a9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\e8fb1ebd850140caa97509d1d746dfb1.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1088
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\e8fb1ebd850140caa97509d1d746dfb1.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1116
    • C:\Users\Admin\AppData\Local\Temp\8084d00ab4f95726557c2183e07610caf668448e69e4bfed8b925e763b42c9a9.exe
      "C:\Users\Admin\AppData\Local\Temp\8084d00ab4f95726557c2183e07610caf668448e69e4bfed8b925e763b42c9a9.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:588
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 588 -s 1136
        3⤵
        • Program crash
        PID:1200

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\e8fb1ebd850140caa97509d1d746dfb1.xml

    MD5

    39a7aa8aa4e26ff13dd3e81cc077ff2c

    SHA1

    2a2f757c27527e69e8ae581e1e5f2cc018ac25bb

    SHA256

    dc468541de7d0c88600dcf6023a93530851fe5de0c3b6c328cf7fc2d82fd81e7

    SHA512

    3dff013449489584e87c657f8700b20e2d6253d11037cc66656f483d7f0537cef2d2cb08ab7aef42a64a03cff5321676c489fb05a514aecc6eec31f5ee6e6434

  • memory/588-59-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/588-60-0x0000000073FD0000-0x00000000746BE000-memory.dmp

    Filesize

    6.9MB

  • memory/588-61-0x00000000010C1000-0x00000000010C2000-memory.dmp

    Filesize

    4KB

  • memory/588-62-0x0000000000380000-0x00000000003F6000-memory.dmp

    Filesize

    472KB

  • memory/588-64-0x00000000010C3000-0x00000000010C4000-memory.dmp

    Filesize

    4KB

  • memory/588-63-0x00000000010C2000-0x00000000010C3000-memory.dmp

    Filesize

    4KB

  • memory/588-65-0x00000000010C4000-0x00000000010C5000-memory.dmp

    Filesize

    4KB

  • memory/1704-54-0x0000000075CC1000-0x0000000075CC3000-memory.dmp

    Filesize

    8KB

  • memory/1704-55-0x0000000001230000-0x00000000012E6000-memory.dmp

    Filesize

    728KB

  • memory/1704-57-0x0000000001230000-0x00000000012E6000-memory.dmp

    Filesize

    728KB