General

  • Target

    a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe

  • Size

    1.6MB

  • Sample

    240612-ccr9zsyckg

  • MD5

    2fa23a2e93b10ae07013e24692f35b6d

  • SHA1

    9481be2f68a244f9825295fda01c5f1fce66648d

  • SHA256

    a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265

  • SHA512

    21ecbe170b529c7373d9eda6750eaa7c7a578d995e75f54c4466ae2132dae0ec5f2d79e4fefceb05016b965031d2fdf568da604dfb367a886face4af10c5bacd

  • SSDEEP

    12288:HEzZEAmD9/RR3biUuyjpgebm6YRAbAZRwox15bGz5XWCMmsI8txwFF71a0:HEzZ6/RR3b4spUZRJ15beWCMmywPp

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe

    • Size

      1.6MB

    • MD5

      2fa23a2e93b10ae07013e24692f35b6d

    • SHA1

      9481be2f68a244f9825295fda01c5f1fce66648d

    • SHA256

      a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265

    • SHA512

      21ecbe170b529c7373d9eda6750eaa7c7a578d995e75f54c4466ae2132dae0ec5f2d79e4fefceb05016b965031d2fdf568da604dfb367a886face4af10c5bacd

    • SSDEEP

      12288:HEzZEAmD9/RR3biUuyjpgebm6YRAbAZRwox15bGz5XWCMmsI8txwFF71a0:HEzZ6/RR3b4spUZRJ15beWCMmywPp

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables packed with or use KoiVM

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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