Extracted

Extracted

Extracted

Extracted

Extracted

• • Target
    MicrosoftEdgeUpdate.exe
  • Size 2.9MB
  • SHA256 aa669125005facaa6493b6352844af57f1a4ac7a0f485c77ff7940b13111209e
  • MD5 33811e27cb72435b44c15a26b5847319
  • SHA1 1ced604521b3cca03123e2ac2a61051a8e132f0f
  • SHA512 56c522ccf14d7ab1e05dfbc1f90b159e6348a32f4f5c524fb0cccb79ee578693d1a34b63b9aab3a992a736a8f8cc6dd54fa9e693849823758ac055b2f0dc81a5
  • SSDEEP 49152:+nJqWGb+qGSXMwht6SawBXoznMgyvYf7Wcu5DqCqvoCTtPgIU6iJGwg:4GblGdSD4Xh7CD21+JG
  • TLSH
    T1C8E57D43E6A180FDC16AC174875B9733FA32B8891530BAAF17E4DB212E26F505F1E719
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  defense_evasiondiscoveryexecutionimpactpersistenceprivilege_escalationransomwarespywarestealeradwarebootkittrojan

  • Suspicious use of NtCreateProcessExOtherParentProcess

  • Clears Windows event logs

    defense_evasionransomware

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • 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

  • Disables RegEdit via registry modification

    defense_evasion

  • Disables Task Manager via registry modification

    defense_evasion

  • Disables cmd.exe use via registry modification

    defense_evasion

  • Disables one or more Microsoft Defender components

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    defense_evasion

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Event Triggered Execution: Image File Execution Options Injection

    persistence

  • Sets service image path in registry

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

    persistence

  • Uses Session Manager for persistence

    Creates Session Manager registry key to run executable early in system boot.

    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.

  • Creates a file in the Startup directory

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    persistenceprivilege_escalation

  • Event Triggered Execution: Component Object Model Hijacking

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation

  • Executes dropped EXE

  • Impair Defenses: Safe Mode Boot

    defense_evasion

  • Loads dropped DLL

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Stops running service(s)

    defense_evasionexecution

  • Windows security modification

    defense_evasiontrojan

  • Adds Run key to start application

    persistence

  • Checks for any installed AV software in registry

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Checks whether UAC is enabled

    defense_evasiontrojan

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Drops desktop.ini file(s)

  • Enumerates connected drives

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

  • Indicator Removal: Clear Persistence

    Clear artifacts associated with previously established persistence like scheduletasks on a host.

    defense_evasion

  • 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

  • Sets desktop wallpaper using registry

    ransomware
  behavioral1behavioral2