Analysis

  • max time kernel
    107s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-01-2021 07:13

General

  • Target

    b1b2e4feae64fb2c5cffe6b5021dfc89.exe

  • Size

    1.0MB

  • MD5

    b1b2e4feae64fb2c5cffe6b5021dfc89

  • SHA1

    6136733b5990a3a68cd01221e0f3dad4a7ddeaa9

  • SHA256

    4d9d6fc917cb1b46fd579b2d962af49850ce5e48b27a60a0c99e3426db649327

  • SHA512

    b063746dd37440d2afe1897139066cb311d60951e13ab9c0b46c862c9fe99143d0d9dc58ce24d639cd6068a71a62a5a34fe60a8107214aae3f466bb1087f3523

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    srvc13.turhost.com
  • Port:
    587
  • Username:
    info@bilgitekdagitim.com
  • Password:
    italik2015

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    srvc13.turhost.com
  • Port:
    587
  • Username:
    info@bilgitekdagitim.com
  • Password:
    italik2015

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 local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1b2e4feae64fb2c5cffe6b5021dfc89.exe
    "C:\Users\Admin\AppData\Local\Temp\b1b2e4feae64fb2c5cffe6b5021dfc89.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:412
    • 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:4008
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
        3⤵
        • Creates scheduled task(s)
        PID:4084
    • C:\Users\Admin\AppData\Local\Temp\b1b2e4feae64fb2c5cffe6b5021dfc89.exe
      "C:\Users\Admin\AppData\Local\Temp\b1b2e4feae64fb2c5cffe6b5021dfc89.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3524
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1512

    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

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml
      MD5

      a36564afc14b3eb0849c01a3afdb9944

      SHA1

      4dcee9fae3fde4e46b08529bc0ba067150686f07

      SHA256

      9d4342f763c5d62a06f69aa6fdcb1caa376ff2f2c0972f36b487f73b4d221996

      SHA512

      782082aa36ae056734e90fc079c813dfef59420571a1b70cde4cf15eb6c870f85b2bfe0748ef4db9df3d010c08671bff744d78178ba75bf2ba02b665f044ae89

    • memory/1512-17-0x0000000000000000-mapping.dmp
    • memory/3524-11-0x0000000004EE2000-0x0000000004EE3000-memory.dmp
      Filesize

      4KB

    • memory/3524-12-0x0000000004EE3000-0x0000000004EE4000-memory.dmp
      Filesize

      4KB

    • memory/3524-6-0x0000000000400000-0x0000000000482000-memory.dmp
      Filesize

      520KB

    • memory/3524-7-0x00000000739A0000-0x000000007408E000-memory.dmp
      Filesize

      6.9MB

    • memory/3524-8-0x0000000002940000-0x00000000029AD000-memory.dmp
      Filesize

      436KB

    • memory/3524-10-0x0000000004EE0000-0x0000000004EE1000-memory.dmp
      Filesize

      4KB

    • memory/3524-20-0x0000000006400000-0x0000000006401000-memory.dmp
      Filesize

      4KB

    • memory/3524-19-0x00000000066B0000-0x00000000066B1000-memory.dmp
      Filesize

      4KB

    • memory/3524-13-0x0000000005000000-0x0000000005001000-memory.dmp
      Filesize

      4KB

    • memory/3524-14-0x00000000055A0000-0x00000000055A1000-memory.dmp
      Filesize

      4KB

    • memory/3524-15-0x0000000005110000-0x0000000005111000-memory.dmp
      Filesize

      4KB

    • memory/3524-16-0x0000000004EE4000-0x0000000004EE5000-memory.dmp
      Filesize

      4KB

    • memory/3524-3-0x000000000040188B-mapping.dmp
    • memory/3524-18-0x00000000064E0000-0x00000000064E1000-memory.dmp
      Filesize

      4KB

    • memory/4008-2-0x0000000000000000-mapping.dmp
    • memory/4084-4-0x0000000000000000-mapping.dmp