Extracted

• • Target
    Umbral.exe
  • Size 229KB
  • SHA256 19952994604a44ec24a392db6c594f7129c6825c0c693a0b35b7de99de39b234
  • MD5 03344096c2e709c5471e3b5373dda242
  • SHA1 00aaa589489b41c9de6361f1093ca656bbe97c7a
  • SHA512 60af5586843b16648882bace5bba7c94bef1adfa04f8fc8f51ee618278872d53ade8be92e4526a3cf8d01fd22c40b5924481d1be981c29997357d09b2d2b47b4
  • SSDEEP 6144:9loZMNrIkd8g+EtXHkv/iD4tIhOkqNlOqLWU1pAF3b8e1mXi:foZmL+EP8tIhOkqNlOqLWU1pAdx
  • TLSH
    T1CD346B5933B8CB17E25F8BBED5B1158F87B1F103E90AF78E0C8895E82411B42E949E57
  • 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

  • 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.

  • Looks up external IP address via web service

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

    discovery
  behavioral1behavioral2