General

  • Target

    0908000090000.exe

  • Size

    3.4MB

  • Sample

    201230-t1ner46trs

  • MD5

    2b16401ac7e40343abde78deb36f0746

  • SHA1

    6c441249071a590f6a1178cc276f87f8641c8cf4

  • SHA256

    315e6e844a325bdbdbd68365d389adb3e31c55cf7323936f14f3e48f7e5f3014

  • SHA512

    3ec8ac63db7b07b9a43b37f27cc80da7543baab0c259e25de2e92cc058427b385d4dc6aa91fc12cdd3b1d6d40c20df1a5c7731ec750a91770f98631c1840a9b8

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

Targets

    • Target

      0908000090000.exe

    • Size

      3.4MB

    • MD5

      2b16401ac7e40343abde78deb36f0746

    • SHA1

      6c441249071a590f6a1178cc276f87f8641c8cf4

    • SHA256

      315e6e844a325bdbdbd68365d389adb3e31c55cf7323936f14f3e48f7e5f3014

    • SHA512

      3ec8ac63db7b07b9a43b37f27cc80da7543baab0c259e25de2e92cc058427b385d4dc6aa91fc12cdd3b1d6d40c20df1a5c7731ec750a91770f98631c1840a9b8

    • Matiex

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

    • Matiex Main Payload

    • Modifies WinLogon for persistence

    • Drops startup file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks