Extracted

• • Target

    Umbral.exe

  • Size

    232KB

  • MD5

    b19a46354270983374d8a6c2e1de3eff

  • SHA1

    1e0c163fd3d63d26dd3f271a3e348b3d69140c7d

  • SHA256

    8ff6ca14eac4b42391697608e3cf0c6fe433e58ac965bef66ec32888305464d9

  • SHA512

    829a6b6c93c5f98ac8b2633608c6d05247e8b84b9eb188ffaf69a6339019fd92772730325de9ef378812693203abe19cff289b1feb7ca8149dcbeb857d307b6d

  • SSDEEP

    6144:BloZM+rIkd8g+EtXHkv/iD4yF4W4+ZRS23q459cTub8e1mQvi:zoZtL+EP8yF4W4+ZRS23q459cmW

  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

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

    execution

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    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

  • Legitimate hosting services abused for malware hosting/C2

  • Looks up external IP address via web service

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

  behavioral1behavioral2