Extracted

• • Target

    Umbral.exe

  • Size

    231KB

  • MD5

    37040bc6e02b555d9062631211678bc9

  • SHA1

    cb2f4548ce9bd51ce42301ffa74130d9c6098ad5

  • SHA256

    3294164d79836fe3765e57e50dd0ac898164ccc049f097fb2deb2725478aa583

  • SHA512

    e5db52931152bef14e1dda82288a1f4265d79c4c4ad08f143994b2b60b2b530dfbcdcb1468bd70e5799a55b2a4f02565249e0d41944032bbd43a296757d9754c

  • SSDEEP

    6144:RloZM+rIkd8g+EtXHkv/iD4FxEe9rI8jB67NokR4cb8e1mtqpui:joZtL+EP8FxEe9rI8jB67NokRxuqR

  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

  • 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