BlackOasis

BlackOasis is a Middle Eastern-based threat group that appears to be a customer of Gamma Group. This threat group has targeted prominent figures in the United Nations, opposition bloggers, activists, regional news correspondents, and think tanks. A group identified by Microsoft as NEODYMIUM is reportedly associated closely with BlackOasis operations, but evidence that the group names are aliases has not been confirmed.

The following is a collection of rules based on the presence of indicators of compromise publicly reported as associated with this malicious actor.

Suspicious DNS Request - BlackOasis Related Domain Observed

Description

This detection identifies a request to resolve a domain publicly reported as associated with this malicious actor. Malicious actors may use compromised websites for malicious purposes. This detection is powered by the Rapid7 Threat Command Threat Library.

Recommendation

This alert may have been caused by normal web browsing activity by the end user. Review the alert in question. If necessary, rebuild the host from a known, good source and have the user change their password.

MITRE ATT&CK Techniques

  • Acquire Infrastructure - T1583
  • Domains - T1583.001
  • Compromise Infrastructure - T1584
  • Domains - T1584.001
Suspicious Process - BlackOasis Related Binary Executed

Description

This detection identifies the execution of a file with a hash publicly reported as associated with this malicious actor. Malicious actors may use common System Administration tools for malicious purposes. This detection is powered by the Rapid7 Threat Command Threat Library.

Recommendation

Review the alert in question. If necessary, rebuild the host from a known, good source and have the user change their password.

Suspicious Web Request - BlackOasis Related Domain Observed

Description

This detection identifies a request to a domain publicly reported as associated with this malicious actor. Malicious actors may compromise websites for malicious purposes. This detection is powered by the IntSights Threat Library.

Recommendation

This alert may have been caused by normal web browsing activity by the end user. Review the alert in question. If necessary, rebuild the host from a known, good source and have the user change their password.

MITRE ATT&CK Techniques

  • Acquire Infrastructure - T1583
  • Domains - T1583.001
  • Virtual Private Server - T1583.003
  • Server - T1583.004
  • Compromise Infrastructure - T1584
  • Domains - T1584.001
  • Virtual Private Server - T1584.003
  • Server - T1584.004