Extracted

• • Target
    Booster.exe
  • Size 231KB
  • SHA256 4832d4420e03bad83f382100dba386f9e58acc23f068b09ee520ddbb8e551242
  • MD5 4da5acf9c2ef18461e6ecfc04a770a5b
  • SHA1 d9c030ed6431ff0c7b9d8484547bb3d3f1c8932f
  • SHA512 abdcc3f99f0455da535bb406f05a460f8b4d17b48a92cef0e9512b4ac72ae9be7070ae344659af01a7caef467ea52c0ed9df6f3bf2f19784cd892655ea9d0182
  • SSDEEP 6144:xloZM9rIkd8g+EtXHkv/iD4KM5sw2xpaZPyAxVk03b8e1miLai:DoZOL+EP8KM5sw2xpaZPyAxVkOfLf
  • TLSH
    T117346C5933B88B17E25F8BBED5B1158F87B2F103E90AF78E0C8895F82411742E949E57
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  defense_evasionexecutionumbralspywarestealeradwarediscoverypersistence

  • Detects Umbral payload

  • Family: Umbral

    Umbral stealer is an open-source modular stealer written in C#.

    stealerumbral

  • Boot or Logon Autostart Execution: Active Setup

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Disables one or more Microsoft Defender components

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    defense_evasion

  • Drops file in Drivers directory

  • Disables automatic submission of suspicious files to Microsoft by Windows Defender

    Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    defense_evasion

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service

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

  behavioral1behavioral2