General

  • Target

    07c587b55d31f915af93c53896bce53e79d91a72609590f37acfa4457315dff4.exe

  • Size

    2.3MB

  • Sample

    240509-bd7wdshf21

  • MD5

    e05072707e8bf8693a2fdbbf09ee5171

  • SHA1

    aa419828400cf6b684382a8a0d43d9551bafacb5

  • SHA256

    07c587b55d31f915af93c53896bce53e79d91a72609590f37acfa4457315dff4

  • SHA512

    1b8db09a65831e7cc6688feab6a1ab45612b28db0be72404ecd77fd67462ea8915742941dc32b65a7cb5bc689f7c18da1d1602a68f50b778da94bfb6d276c945

  • SSDEEP

    49152:Figf68sOtnjOXpR4k9lYFHA2tZwLRm8qyt:Fio6Lpl94HdjsRjq

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sturmsgroup.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    y[/wk46uE}y(|Xn[

Targets

    • Target

      07c587b55d31f915af93c53896bce53e79d91a72609590f37acfa4457315dff4.exe

    • Size

      2.3MB

    • MD5

      e05072707e8bf8693a2fdbbf09ee5171

    • SHA1

      aa419828400cf6b684382a8a0d43d9551bafacb5

    • SHA256

      07c587b55d31f915af93c53896bce53e79d91a72609590f37acfa4457315dff4

    • SHA512

      1b8db09a65831e7cc6688feab6a1ab45612b28db0be72404ecd77fd67462ea8915742941dc32b65a7cb5bc689f7c18da1d1602a68f50b778da94bfb6d276c945

    • SSDEEP

      49152:Figf68sOtnjOXpR4k9lYFHA2tZwLRm8qyt:Fio6Lpl94HdjsRjq

    • AgentTesla

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

    • Detect ZGRat V1

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Detect packed .NET executables. Mostly AgentTeslaV4.

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

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • 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