General

  • Target

    avg_antivirus_free_setup.exe

  • Size

    247KB

  • Sample

    241023-ws2cdatbnh

  • MD5

    ca7b000cb77cd3dd06e51a1a468fb707

  • SHA1

    8513b00560fb0b5e5c4fbbc61e51e125436ffb08

  • SHA256

    8d2d49b1772be84d62a805dc6280d5d4a5d43a4e9c20a5e7e567a2c384d70793

  • SHA512

    9e201984632460817dfb77771381da06510962ac5eec96b7f0a8a449a677d239dd72b53731e4b03872a8382b86130e02fffe8dac746f2531ab317739b520c68b

  • SSDEEP

    6144:utgJcB7RG80fGwvDBn9Egw7Qj3EVdQY7:utgJORaGiDB9y1dT7

Malware Config

Targets

    • Target

      avg_antivirus_free_setup.exe

    • Size

      247KB

    • MD5

      ca7b000cb77cd3dd06e51a1a468fb707

    • SHA1

      8513b00560fb0b5e5c4fbbc61e51e125436ffb08

    • SHA256

      8d2d49b1772be84d62a805dc6280d5d4a5d43a4e9c20a5e7e567a2c384d70793

    • SHA512

      9e201984632460817dfb77771381da06510962ac5eec96b7f0a8a449a677d239dd72b53731e4b03872a8382b86130e02fffe8dac746f2531ab317739b520c68b

    • SSDEEP

      6144:utgJcB7RG80fGwvDBn9Egw7Qj3EVdQY7:utgJORaGiDB9y1dT7

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Uses Session Manager for persistence

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

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • Boot or Logon Autostart Execution: Active Setup

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

    • Checks for any installed AV software in registry

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • 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.

MITRE ATT&CK Enterprise v15

Tasks