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General

  • Target

    fty.exe

  • Size

    564KB

  • Sample

    200716-8x7jk7g3z2

  • MD5

    70e0f7eacd578fef1b19738934c8cc1e

  • SHA1

    2c2734a866cac52b7e63c2cc5a982ae9dfb7435e

  • SHA256

    37e2ca0ea6838887745d5f452aea15de2a0ea556a9095a87962c103489942e08

  • SHA512

    2abd6d51a4aa132b2b64a9c4bf06134aacf489b1d82c458bfc5e12e04ff67eef511ffca0995c685209397c710120f99731de78aa7c6eb9530cfe5856f0ce226f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.blackpearl-tours.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    black@123instanbul

Targets

    • Target

      fty.exe

    • Size

      564KB

    • MD5

      70e0f7eacd578fef1b19738934c8cc1e

    • SHA1

      2c2734a866cac52b7e63c2cc5a982ae9dfb7435e

    • SHA256

      37e2ca0ea6838887745d5f452aea15de2a0ea556a9095a87962c103489942e08

    • SHA512

      2abd6d51a4aa132b2b64a9c4bf06134aacf489b1d82c458bfc5e12e04ff67eef511ffca0995c685209397c710120f99731de78aa7c6eb9530cfe5856f0ce226f

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks