Extracted

• • Target
    Nursultan/Nursultan.exe
  • Size 229KB
  • SHA256 b155bb758d2e9f1acee89042ab54b0aef230e38255df0a9ba2a60793ed99c7e9
  • MD5 582fd36101ec72b08c4f4cc5374db1fa
  • SHA1 c7920fd07f39f2ed5ebf93ec8f92f1612002b8b2
  • SHA512 a3583ec094ed997eefe5fb0a964c311a6cc0984ecd869c6b95edfe016e3b724cd0f5330bec637794db2fec35814ceeb5935694e8c95a21b5bd278c40b1a87a86
  • SSDEEP 6144:dloZM+rIkd8g+EtXHkv/iD4VuwM0ad1+t7mEl5Quab8e1mdi:/oZtL+EP8VuwM0ad1+t7mEl5QNX
  • TLSH
    T1A9346B5533B88B17E25F8BBED5B1158F87B2F103E90AF7CE0C8895E82412742E949E57
  • 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

  • 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.

  behavioral1