General

  • Target

    downloader.exe

  • Size

    70.1MB

  • Sample

    240814-bfhpaatbrd

  • MD5

    c400bb99399ac5e6ee84cbbfc14d4d80

  • SHA1

    7a422bb513001140515c4825d449e363ef44cad0

  • SHA256

    5eb7abc218b3f8b9d07fc6be3f67100379dc667a2aaa6385036bae2a312c3b18

  • SHA512

    6f22792148c4a4cf1aae629f096b2690a2dfd4a55fa31875dbe67989bde8b8d8be80d1d80f3a151c2fd7f1a969a250e0047f1fb30dac4d1c602038cde7c26a00

  • SSDEEP

    393216:lWxQN89qQk4adiJCuE2fUCdod+OvqKkZHzXhJ/KTe8uiBUtkc0k3qrsGg4GUo3Nh:lWoI7zGh5ahWc3ImH

Malware Config

Targets

    • Target

      downloader.exe

    • Size

      70.1MB

    • MD5

      c400bb99399ac5e6ee84cbbfc14d4d80

    • SHA1

      7a422bb513001140515c4825d449e363ef44cad0

    • SHA256

      5eb7abc218b3f8b9d07fc6be3f67100379dc667a2aaa6385036bae2a312c3b18

    • SHA512

      6f22792148c4a4cf1aae629f096b2690a2dfd4a55fa31875dbe67989bde8b8d8be80d1d80f3a151c2fd7f1a969a250e0047f1fb30dac4d1c602038cde7c26a00

    • SSDEEP

      393216:lWxQN89qQk4adiJCuE2fUCdod+OvqKkZHzXhJ/KTe8uiBUtkc0k3qrsGg4GUo3Nh:lWoI7zGh5ahWc3ImH

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • 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

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

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

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks