General

  • Target

    30092024_1158_29092024_PO-098765678000.Doc.z

  • Size

    669KB

  • Sample

    240930-n49twsybja

  • MD5

    cd139f64b5dc030a58086466cdb6023d

  • SHA1

    462f2d293789b32b925c43866c1cddb2c00b5a38

  • SHA256

    b812a55ff904cbb2d44d5e857e1f55fc6523c702614a95a5a5c597049a120749

  • SHA512

    9437ac5cbdc98ec2aa4ca76c96ac33ffd31eb816b6134afc6824dab17642bb1e4e85ff4d9a4406d8386e17b07fb12481fb02dc9b8f7bfca929b6dbe7941f7e14

  • SSDEEP

    12288:Vga3qZAUwmwnffA+Qm8AOXSTDA/TS+H10x3X07F5HQcRccVi4iQKonJDZ:qa3Zu+Q3jqo30x3X07L324vnJDZ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.antoniomayol.com:21
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    cMhKDQUk1{;%

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.antoniomayol.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    cMhKDQUk1{;%

Targets

    • Target

      PO-098765678000.bat

    • Size

      764KB

    • MD5

      f9617b77cfa61832aa0db5c8cd8e0357

    • SHA1

      95ca6b88193fad7de1a9693639641f42744136c4

    • SHA256

      e2e31ef953c1dee99b1b6ee23c149b568a76d44531457adb0c89eff648c58a55

    • SHA512

      9958f54f5a1fde6e7f6315395080579277958f2e3416e39908576c8fa0b55c162d1d845da203511070d58a2724f88b343ce475b8c63cf544f7f53712f5c50d92

    • SSDEEP

      12288:qUx5U3TB2nJfk+Cs8uOtcTDA/dS+H1cxhNw7HBKQ0oL85yhl04:qUx8b+CxTwoZcxhNw7HHhz

    • AgentTesla

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 v15

Tasks