General

  • Target
    Fling-Standalone25.264.54874.zip
  • Size 41.2MB
  • Sample260625-n1sffabt2y
  • SHA256 5d48e83132f69c6ded86e7ced5a6b80b87d79ddefcc909105d2f84e89a9f9b5c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • onyxc2

C2
  • svn555634dm.click

Attributes
  • port

    443

  • url_path

    /backend/api/app.php

Targets

    • Target
      Fling-Standalone25.264.54874.zip
    • Size 41.2MB
    • SHA256 5d48e83132f69c6ded86e7ced5a6b80b87d79ddefcc909105d2f84e89a9f9b5c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

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

    • Enumerates connected drives

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

    • Target
      Fling-Standalone62.629.6056.exe
    • Size 3.4MB
    • SHA256 41999a3d0da035ff8068905c90235ea50121329cb0661e38d745974ebf5e3ae2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: OnyxC2

      OnyxC2 is a Windows backdoor written in C++.

    • Boot or Logon Autostart Execution: Active Setup

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

    • Enumerates connected drives

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

    • Target
      borlndmm.dll
    • Size 126.8MB
    • SHA256 f644f67eabef3acd36c8ec87b2f49c4b120f598f2f34c771c90a5c8fa00aec20
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks