General

  • Target

    e9232107c85b4b3a9ec90a32fa98b99d27f1ca84ef2b5654d7ab696f9f034890.exe

  • Size

    673KB

  • Sample

    240612-cylz4aygjq

  • MD5

    aaca7e0cc2d952668293c38fd0345b99

  • SHA1

    aa4197a75d07592c242850b13b1dea76671e025a

  • SHA256

    e9232107c85b4b3a9ec90a32fa98b99d27f1ca84ef2b5654d7ab696f9f034890

  • SHA512

    d426b7461bbf07b818cc90148de3fcb34489db9b7a6c4d459f76627335a55586eef74fdc697b66cd5b2f4c6ff189a7eb07c4b6e2054ac559638883e667ede33c

  • SSDEEP

    12288:LSdTeRPW+zhKEuWJXXUw2Ql5M1szhYhwFMcSMgrsKuqyJMD0OB:LHRPW+9KZWJHUw2gIszhYhGMhVzNO

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      e9232107c85b4b3a9ec90a32fa98b99d27f1ca84ef2b5654d7ab696f9f034890.exe

    • Size

      673KB

    • MD5

      aaca7e0cc2d952668293c38fd0345b99

    • SHA1

      aa4197a75d07592c242850b13b1dea76671e025a

    • SHA256

      e9232107c85b4b3a9ec90a32fa98b99d27f1ca84ef2b5654d7ab696f9f034890

    • SHA512

      d426b7461bbf07b818cc90148de3fcb34489db9b7a6c4d459f76627335a55586eef74fdc697b66cd5b2f4c6ff189a7eb07c4b6e2054ac559638883e667ede33c

    • SSDEEP

      12288:LSdTeRPW+zhKEuWJXXUw2Ql5M1szhYhwFMcSMgrsKuqyJMD0OB:LHRPW+9KZWJHUw2gIszhYhGMhVzNO

    • 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

    • 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