General

  • Target

    70fa40d520be9d77af7524557ba8b0e8c0cbdfd26d85bf16875b1f262960f707.exe

  • Size

    674KB

  • Sample

    240223-fwgjdabf4z

  • MD5

    88e659a0a43bee7e8952c575877b8ecf

  • SHA1

    01264fdd2fc5c82cda22b8f269ccc94522e98eaf

  • SHA256

    70fa40d520be9d77af7524557ba8b0e8c0cbdfd26d85bf16875b1f262960f707

  • SHA512

    ae3072b2ea7f1d0b56aba450928ee10dc3f573d6f52315f2ac739d44d35caa3ceafd18ad1f6ae162c09cf7e9071d00a81739b04146dc87fb8249f3d9ada50e26

  • SSDEEP

    12288:05Ujd53LlvCzmi81hj/wBzhZh80TUsUYQTdOj7IfFMtmMFiJj1eoJamjOnEOFWX8:sKoX8jjoD8bt1TdOjCpJjKmH

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      70fa40d520be9d77af7524557ba8b0e8c0cbdfd26d85bf16875b1f262960f707.exe

    • Size

      674KB

    • MD5

      88e659a0a43bee7e8952c575877b8ecf

    • SHA1

      01264fdd2fc5c82cda22b8f269ccc94522e98eaf

    • SHA256

      70fa40d520be9d77af7524557ba8b0e8c0cbdfd26d85bf16875b1f262960f707

    • SHA512

      ae3072b2ea7f1d0b56aba450928ee10dc3f573d6f52315f2ac739d44d35caa3ceafd18ad1f6ae162c09cf7e9071d00a81739b04146dc87fb8249f3d9ada50e26

    • SSDEEP

      12288:05Ujd53LlvCzmi81hj/wBzhZh80TUsUYQTdOj7IfFMtmMFiJj1eoJamjOnEOFWX8:sKoX8jjoD8bt1TdOjCpJjKmH

    • 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 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • 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 v15

Tasks