General

  • Target

    Nieualing.exe

  • Size

    666KB

  • Sample

    200713-8lyq9evfmn

  • MD5

    ef2f5c3f618a75e8c9b1d17145c6e496

  • SHA1

    d9feed66832c692b91cbc019cbcd3aa163c28760

  • SHA256

    db2be6bffc7bbd081e0160ee012e2933178ba7fbbbbe293e9e09678c7c78f858

  • SHA512

    0d70eb9ad9e112db11652e3f1024b7f6dbed4d2dc36e24976d64c7171091b1f16bf60b2b4f26b8914f18f076da6234ab7639eb343079c603c7ca008d399a0aae

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    goodwork11

Targets

    • Target

      Nieualing.exe

    • Size

      666KB

    • MD5

      ef2f5c3f618a75e8c9b1d17145c6e496

    • SHA1

      d9feed66832c692b91cbc019cbcd3aa163c28760

    • SHA256

      db2be6bffc7bbd081e0160ee012e2933178ba7fbbbbe293e9e09678c7c78f858

    • SHA512

      0d70eb9ad9e112db11652e3f1024b7f6dbed4d2dc36e24976d64c7171091b1f16bf60b2b4f26b8914f18f076da6234ab7639eb343079c603c7ca008d399a0aae

    • AgentTesla

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

    • AgentTesla Payload

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks