Extracted

• • Target

    Umbral.exe

  • Size

    234KB

  • MD5

    18a5e3fd22133b48de0ac3ae4e41c997

  • SHA1

    6664c80cf7567077385cc5f82aba04d525a7a8a9

  • SHA256

    9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53

  • SHA512

    c359ef3b9b5736b63e8906f6d35e6fb9b6f286f4fd382f5f445f2a5c9e38673a04f90215349c417c19e67cd9e123925521084167ac2dce0af842d18eb3c070b9

  • SSDEEP

    6144:zloZM+rIkd8g+EtXHkv/iD4VsEnYe5xysXKYZd85Wn+l78e1mUDiM:xoZtL+EP8mEnYe5xysXKYZd85zJiM

  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.

  • Drops file in System32 directory

  behavioral1behavioral2