Resubmissions

11-11-2024 18:53

241111-xjz9dssqfv 8

11-11-2024 16:20

241111-ts28kavjgm 9

11-11-2024 15:21

241111-srpqeatpeq 8

10-11-2024 18:40

241110-xbpspasjes 8

10-11-2024 18:24

241110-w19zgsscll 8

09-11-2024 17:39

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09-11-2024 17:22

241109-vxq7ja1pej 8

09-11-2024 13:57

241109-q9j7jawbjn 8

General

  • Target

    https://github.com/ob2configmaker/SilverBullet/releases/download/v1.1.4/SilverBullet.v1.1.4.exe

  • Sample

    241111-srpqeatpeq

Malware Config

Targets

    • Target

      https://github.com/ob2configmaker/SilverBullet/releases/download/v1.1.4/SilverBullet.v1.1.4.exe

    • Boot or Logon Autostart Execution: Active Setup

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

    • Contacts a large (655) amount of remote hosts

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

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • A potential corporate email address has been identified in the URL: ThreeDots@50f2b38b5dc3f92ff2095e5804e73baf66e5b2b5

    • 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

    • 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.

    • Checks whether UAC is enabled

    • Creates a large amount of network flows

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

    • Drops desktop.ini file(s)

    • Indicator Removal: Clear Persistence

      remove IFEO.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Checks system information in the registry

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

    • Detected potential entity reuse from brand MICROSOFT.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks