Extracted

• • Target
    okuna.io_ransome.exe
  • Size 39KB
  • SHA256 ff15bc19d4007a398d296929023694aa0b86fd81f7c935003949f4a2225019a4
  • MD5 62aa8fbfb4afba562ff6c4e0923d91a9
  • SHA1 598a1072424709995cf0539b26781235c911da9a
  • SHA512 5c0491105047e68fd8a0ae635bc57f6fd68dfa400324978ead6ed9abba83ae84ade212fea63c8a6e7e6684e8763932d2d94b45635ef3d45dfb487f70cb65853c
  • SSDEEP 768:VYAPAEIk0I7bwqwleBgEBgWmoIX9AHedEEusXqKhgayz0:1Ikpb+lMJmoIX9A+df9XqigE
  • TLSH
    T17403E74133F98668E1BF6BB74D7242008775F897DD23D70D0ED1849E1AB3B448A99B93
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  defense_evasiondiscoveryexecutionnanocoreimpactkeyloggerpersistenceprivilege_escalationransomwarespywarestealertrojan

  • Family: NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

    keyloggertrojanstealerspywarenanocore

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • Grants admin privileges

    Uses net.exe to modify the user's privileges.

  • Disables one or more Microsoft Defender components

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

    defense_evasion

  • Modifies Windows Firewall

    defense_evasion

  • 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

  • Stops running service(s)

    defense_evasionexecution

  • Adds Run key to start application

    persistence

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Creates a new local user account

    Uses net.exe to create a new local user account, often for persistence or a backdoor account.

    persistence
  behavioral1behavioral2