Extracted

• • Target
    .exe
  • Size 511KB
  • SHA256 1a48a6bdd746603565d8dd4f92dd466d3898f55b6cbf90169519c10ceebafbae
  • MD5 3f44b9060a4148302791d0be4028c73b
  • SHA1 82276b86c1f9a5350325c8aa4fa7798d1802c063
  • SHA512 59050374880e56b791257928014d50a1756034e5ba3745d91cd159ddfab2d4393a1585b51480aef10164d9cb3d22cc058a5a66572e34ce58f97bc5af5a2b8e8b
  • SSDEEP 6144:B5fWYMzqwAuKBxGikIi17YKk46jSfa1Q3/0oPRSWGITBwHn/:7FwPKTszT2N1QvlJxJ0n/
  • TLSH
    T1F8B4191E632CFA14E70C39BA5E073D3563678AF66D73BDD740E464B3E4A1829BC01626
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  victim_3endefense_evasiondiscoveryexecutionnjratumbralspywarestealertrojanbootkitpersistenceprivilege_escalation

  • Detects Umbral payload

  • Family: Umbral

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

    stealerumbral

  • Family: njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat

  • Suspicious use of NtCreateUserProcessOtherParentProcess

    defense_evasionprivilege_escalation

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • 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

  • Sets service image path in registry

    This determines the executable launched when a service starts. It can be used to establish persistence.

    persistence

  • Checks BIOS information in registry

    BIOS information is often read in order to detect sandboxing environments.

  • 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 a file named after a Windows system binary

    The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

    defense_evasion

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Reads user/profile data of web browsers

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

    spywarestealer

  • 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.

    discovery

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Drops file in System32 directory

  behavioral1behavioral2behavioral3behavioral4