Extracted

• • Target
    5aa82e1a252eb6fa4edd9e6589c91c9c066fdc5a7e285f921a415cadbf73b0b2
  • Size 571KB
  • SHA256 5aa82e1a252eb6fa4edd9e6589c91c9c066fdc5a7e285f921a415cadbf73b0b2
  • MD5 c6f8f3dbf9a50029eee3335584e83fe7
  • SHA1 1fa1fcb9aa509d560dd84c9e901ed85a2ea36b61
  • SHA512 3db9d806be3fe3826abcdc177caab35413f45386476aee87c12a14fa35810b9c9730ef7f6b6eeeae490824501a5f22b4cd5270c92abee3f5d96f356a9ab00ace
  • SSDEEP 12288:LRZeGAfqNGA3Uq29XIDixjpyq0BErpqFQiog:LRSfrAEH9XIYpj0BErpqvog
  • TLSH
    T145C49D19E7E405FDE0B7E578CD834912EB76BC494771E6CF03A4A9A61F232908E39712
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  defense_evasiondiscoveryexecutionumbralspywarestealer

  • Detects Umbral payload

  • Family: Umbral

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

    stealerumbral

  • 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

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • 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

  • Executes dropped EXE

  • 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.

  • Looks up external IP address via web service

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

    discovery
  behavioral1