Resubmissions

11-11-2024 18:53

241111-xjz9dssqfv 8

11-11-2024 16:20

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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 17:31

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09-11-2024 17:30

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09-11-2024 17:22

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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

    241110-w19zgsscll

Malware Config

Targets

    • Target

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

    • Contacts a large (1312) amount of remote hosts

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Event Triggered Execution: Image File Execution Options Injection

    • Stops running service(s)

    • A potential corporate email address has been identified in the URL: [email protected]

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Creates a large amount of network flows

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

    • 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.

    • Detected potential entity reuse from brand MICROSOFT.

MITRE ATT&CK Enterprise v15

Tasks