Extracted

• • Target

    http://gofile.io/d/YHWmpb

  Score

  10^/10

  umbralcollectiondefense_evasiondiscoveryevasionexecutionpersistenceprivilege_escalationspywarestealertrojan

  • Detect Umbral payload

  • Modifies WinLogon for persistence

    persistence

  • Modifies Windows Defender DisableAntiSpyware settings

    evasiontrojan

  • UAC bypass

    defense_evasiontrojan

  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral

  • Umbral family

    umbral

  • Windows security bypass

    defense_evasiontrojan

  • Blocklisted process makes network request

  • 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

    Using powershell.exe command.

    execution

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Event Triggered Execution: AppInit DLLs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation

  • Event Triggered Execution: Image File Execution Options Injection

    persistence

  • Checks computer location settings

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

  • Executes dropped EXE

  • Loads dropped DLL

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Windows security modification

    defense_evasiontrojan

  • Accesses Microsoft Outlook profiles

    collection

  • Adds Run key to start application

    persistence

  • Checks for any installed AV software in registry

  • Checks whether UAC is enabled

    defense_evasiontrojan

  • Enumerates connected drives

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

  • Indicator Removal: Clear Persistence

    remove IFEO.

    defense_evasion

  • Legitimate hosting services abused for malware hosting/C2

  • Looks up external IP address via web service

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

  • Obfuscated Files or Information: Command Obfuscation

    Adversaries may obfuscate content during command execution to impede detection.

    defense_evasion

  • Drops file in System32 directory

  behavioral1