Extracted

• • Target

    Umbral.exe

  • Size

    227KB

  • MD5

    79ad93ed49ecead23248ec08cc51ecfd

  • SHA1

    06340a50ce4fa06499e37070bbd70d6a0f25786f

  • SHA256

    72f47523343d7d1ddc198998a6a411686dbfcc5a608314ba400957e369e24ff8

  • SHA512

    083fff8df6f2d015cc46a05af331d8eb1dd1b91add76a3b47b818a594bc57a80d167cc6fdb2360de489c52b97e8d042abb207e0133d1a446850504c17ab5ffd7

  • SSDEEP

    6144:eloZM9rIkd8g+EtXHkv/iD4n8jjSQPL4yBECDjazBb8e1mCi:IoZOL+EP8n8jjSQPL4yBECDjaNQ

  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

  • 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