Extracted

• • Target

    Nitro Tools.exe

  • Size

    231KB

  • MD5

    eb9bfe2cafae0e84d30f9e214ec4a6aa

  • SHA1

    fabd92cb405e06b720a88d0077b124fb97577208

  • SHA256

    e88819618a14114c00385b9729bd83567ab21a5547baa8923477bd2c54434369

  • SHA512

    8358eddbb14c88a5ff8859a1c0339f7d0380c8a91510b5daa0e6a3a6dcd15b3967496caef46d10e5f1ba6e7d60c65077022815fa16fc7f0fc542b17007e2a0fa

  • SSDEEP

    6144:RloZM3fsXtioRkts/cnnK6cMl1l0W6YXzQgp8aLLyJcS8e1mKLi:joZ1tlRk83Ml1l0W6YXzQgp8aLLy5rG

  Score

  10^/10

  umbralcredential_accessdiscoveryexecutionspywarestealer

  • Detect Umbral payload

  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral

  • Credentials from Password Stores: Credentials from Web Browsers

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Drops file in Drivers directory

  • Deletes itself

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  behavioral1behavioral2