General

  • Target

    a56444d990ec1e2c8c66f1089851863276162df05cacde31b8244c48bd0936ff

  • Size

    1.0MB

  • Sample

    250109-blm6ystqen

  • MD5

    cee9706118ae9a195b469e678bcc1667

  • SHA1

    b7f64fdd83e0d3bf9f9b0a8f3d37fd166522d9a4

  • SHA256

    a56444d990ec1e2c8c66f1089851863276162df05cacde31b8244c48bd0936ff

  • SHA512

    e45c7dbaf09dbc86415234c6e44f64db4ddf3cc38c199c5a98071248795805a8e3c5590703b817d71490c32c79d0c2ad8d11b531d4f43323b05438520cc25742

  • SSDEEP

    12288:wiuI7/+1xpBmtHIQhhtK9CTSytK4DKYfzn4SA8d:wi7Qs53DK6eYfzn4SRd

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @infinitY1234

Targets

    • Target

      a56444d990ec1e2c8c66f1089851863276162df05cacde31b8244c48bd0936ff

    • Size

      1.0MB

    • MD5

      cee9706118ae9a195b469e678bcc1667

    • SHA1

      b7f64fdd83e0d3bf9f9b0a8f3d37fd166522d9a4

    • SHA256

      a56444d990ec1e2c8c66f1089851863276162df05cacde31b8244c48bd0936ff

    • SHA512

      e45c7dbaf09dbc86415234c6e44f64db4ddf3cc38c199c5a98071248795805a8e3c5590703b817d71490c32c79d0c2ad8d11b531d4f43323b05438520cc25742

    • SSDEEP

      12288:wiuI7/+1xpBmtHIQhhtK9CTSytK4DKYfzn4SA8d:wi7Qs53DK6eYfzn4SRd

    • AgentTesla

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

    • Agenttesla family

    • System Binary Proxy Execution: InstallUtil

      Abuse InstallUtil to proxy execution of malicious code.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks