General

  • Target

    a126d8e25e0d57c17c815713b389ee34.rtf

  • Size

    69KB

  • Sample

    240313-phra4aee56

  • MD5

    a126d8e25e0d57c17c815713b389ee34

  • SHA1

    f879369a4da547c9778025ebeba3b58e28372f8e

  • SHA256

    ee5c4b17cd1da34f6ad2d47de7bf8fad000705086c34243cc0d36a15e1dfb903

  • SHA512

    ee2004b2b04ba22010fcd2324e381a693d7add4e171513d132b71896e088bf1c21319591be316b695e349ac22dbd96f0e5e792ba1c536d1ace6938f677099c7d

  • SSDEEP

    1536:LBJJZKass8qvfQ6v1iEyLj8IjWCsO+WAZaLWWu19TO2jw:LBjZ5sXI10j8SWCr+5aBu19TOqw

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      a126d8e25e0d57c17c815713b389ee34.rtf

    • Size

      69KB

    • MD5

      a126d8e25e0d57c17c815713b389ee34

    • SHA1

      f879369a4da547c9778025ebeba3b58e28372f8e

    • SHA256

      ee5c4b17cd1da34f6ad2d47de7bf8fad000705086c34243cc0d36a15e1dfb903

    • SHA512

      ee2004b2b04ba22010fcd2324e381a693d7add4e171513d132b71896e088bf1c21319591be316b695e349ac22dbd96f0e5e792ba1c536d1ace6938f677099c7d

    • SSDEEP

      1536:LBJJZKass8qvfQ6v1iEyLj8IjWCsO+WAZaLWWu19TO2jw:LBjZ5sXI10j8SWCr+5aBu19TOqw

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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.

    • 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