General

  • Target

    2025-02-08_a4923d5f5080fc1163d442475328df3c_wannacry

  • Size

    3.6MB

  • Sample

    250208-dx571stnbq

  • MD5

    a4923d5f5080fc1163d442475328df3c

  • SHA1

    77ffad80bdeccc06720560ba67efe69be3b0e436

  • SHA256

    8a4d148100180e338d771867adc0045f40cb9a3bfca029515e9fb87973e6437c

  • SHA512

    bf04d7364224e36cc5c7b1fdd377a4b9328919ccbae8cfcd609bbcb9fce7f2fe5b9a447d2b0c0465fb9f2136607f5e6da0635475269abd43c1fb52cc92ec453d

  • SSDEEP

    98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593:yDqPe1Cxcxk3ZAEUadz

Malware Config

Targets

    • Target

      2025-02-08_a4923d5f5080fc1163d442475328df3c_wannacry

    • Size

      3.6MB

    • MD5

      a4923d5f5080fc1163d442475328df3c

    • SHA1

      77ffad80bdeccc06720560ba67efe69be3b0e436

    • SHA256

      8a4d148100180e338d771867adc0045f40cb9a3bfca029515e9fb87973e6437c

    • SHA512

      bf04d7364224e36cc5c7b1fdd377a4b9328919ccbae8cfcd609bbcb9fce7f2fe5b9a447d2b0c0465fb9f2136607f5e6da0635475269abd43c1fb52cc92ec453d

    • SSDEEP

      98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593:yDqPe1Cxcxk3ZAEUadz

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Wannacry family

    • Contacts a large (3246) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Downloads MZ/PE file

    • 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.

    • Executes dropped EXE

    • Checks installed software on the system

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

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks