General

  • Target
    Halkbank_Ekstre_20221222_073809_405251-PDF.exe
  • Size 1.4MB
  • Sample221223-e2ljvaba3x
  • SHA256 5c3db7a9aefc84e986c525b61473a8a9cca36afa979935fb66cb34f32f7d204e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot5471845965:AAGz3YmV7VKz4xbC6JZYPs8qHf8J8palMmQ/

Extracted

Family
  • netwire

C2
  • reportss.duckdns.org:4411

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • lock_executable

    false

  • offline_keylogger

    false

  • password

    Password

  • registry_autorun

    false

  • use_mutex

    false

Targets

    • Target
      Halkbank_Ekstre_20221222_073809_405251-PDF.exe
    • Size 1.4MB
    • SHA256 5c3db7a9aefc84e986c525b61473a8a9cca36afa979935fb66cb34f32f7d204e
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • NetWire RAT payload

    • Netwire

      Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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 Enterprise v6

Tasks