General

  • Target
    cel.exe
  • Size 18.4MB
  • Sample260701-w3vycact8q
  • SHA256 3ffef90315dd0603a5b48841f24b9978bcb9a783bd5e7b94ff0ce9619f6cb085
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      cel.exe
    • Size 18.4MB
    • SHA256 3ffef90315dd0603a5b48841f24b9978bcb9a783bd5e7b94ff0ce9619f6cb085
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies firewall policy service

    • Modifies security service

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Boot or Logon Autostart Execution: Active Setup

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

    • Boot or Logon Autostart Execution: Port Monitors

      Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

    • Boot or Logon Autostart Execution: Print Processors

      Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege 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.

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Maps connected drives based on registry

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks