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General

  • Target

    RFQ#86533-UNITECH STEEL.exe

  • Size

    511KB

  • Sample

    230420-mb1j3sbc2v

  • MD5

    24a89977403150a12cc80edfef8cba76

  • SHA1

    2ab1dbaf5a43dbfaed3f9c007f6ba2330674e1a1

  • SHA256

    506b482e8d326b6c5b603061768faa782cd3992f42fd13635405565ff6e438ee

  • SHA512

    83debdfe71aad18b60dae8d2e99bcb5256e4b3cc2aa1ed829078b714c186398d2b5b9cd8b0db138c5ca44bfdb37d7a3a2374f25ade663394ce1d4f958ba2e22b

  • SSDEEP

    6144:yYa6shAp081nNxvOjqKoeKZJL/P7SlRl7EYO886VEqWfWPF61X93:yYS6nvmjqKoeeVOlRlwfT6qfuI1N

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    +O-vH!=DoS8^

Targets

    • Target

      RFQ#86533-UNITECH STEEL.exe

    • Size

      511KB

    • MD5

      24a89977403150a12cc80edfef8cba76

    • SHA1

      2ab1dbaf5a43dbfaed3f9c007f6ba2330674e1a1

    • SHA256

      506b482e8d326b6c5b603061768faa782cd3992f42fd13635405565ff6e438ee

    • SHA512

      83debdfe71aad18b60dae8d2e99bcb5256e4b3cc2aa1ed829078b714c186398d2b5b9cd8b0db138c5ca44bfdb37d7a3a2374f25ade663394ce1d4f958ba2e22b

    • SSDEEP

      6144:yYa6shAp081nNxvOjqKoeKZJL/P7SlRl7EYO886VEqWfWPF61X93:yYS6nvmjqKoeeVOlRlwfT6qfuI1N

    • AgentTesla

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

    • Executes dropped EXE

    • 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