Analysis

  • max time kernel
    31s
  • max time network
    81s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-01-2023 14:02

General

  • Target

    b785660dc88d6519d727f341e0063cd9.exe

  • Size

    704KB

  • MD5

    b785660dc88d6519d727f341e0063cd9

  • SHA1

    d5c7558ae821f6f4a7e80ef5cc08fbe9a9b371ed

  • SHA256

    13be1472d477c26b68aa35a0912bdfd80fa71e31fe2a0042c736f4068f52ee13

  • SHA512

    0db8e301d6ec80a647559ea5cf2e77f8e422e6a4a0b07cd8260d64ce8038a537a55510ade5df16f0c8ce1ed03273b8efeb4fc80bad9cc9e3f550f8d6f7423c71

  • SSDEEP

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

Malware Config

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 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\b785660dc88d6519d727f341e0063cd9.exe
    "C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2000
    • 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:1964
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1952
    • C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe
      "C:\Users\Admin\AppData\Local\Temp\b785660dc88d6519d727f341e0063cd9.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1944
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 1676
        3⤵
        • Program crash
        PID:1968

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

    766b58e04082802f38c3a53cf10ec996

    SHA1

    3b7d2fd4ac6880b1e9d2fede6ea29eee6f9bae8a

    SHA256

    033b9ed9640c97b7fb6f44ddeae6f4c35f4236f8b22e02382536677d008b043e

    SHA512

    d5ae98403984f8808673d4bb2db519cd7c27a6d4eb710f286d7f5a992b714fc99f38e80e6d49bf38309eea0308d30d14ff3f1be099a81587d8215ca5071224f5

  • memory/1944-56-0x000000000040188B-mapping.dmp
  • memory/1944-57-0x0000000075D11000-0x0000000075D13000-memory.dmp
    Filesize

    8KB

  • memory/1944-60-0x0000000000380000-0x00000000003F2000-memory.dmp
    Filesize

    456KB

  • memory/1944-61-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/1952-55-0x0000000000000000-mapping.dmp
  • memory/1964-54-0x0000000000000000-mapping.dmp
  • memory/1968-62-0x0000000000000000-mapping.dmp
  • memory/2000-58-0x000000000039B000-0x00000000003A0000-memory.dmp
    Filesize

    20KB