sublimemediumRule

Open redirect: Samsung

Message contains use of the Samsung open redirect, but the sender is not Samsung.

MITRE ATT&CK

T1566 T1566.001 T1566.002 T1598 T1204.002 T1486

Detection Query

type.inbound
and any(body.links,
        (
          .href_url.domain.domain == 't.info.samsungusa.com'
          and .href_url.path =~ '/r/'
        )
        or (
          .href_url.domain.root_domain == "samsung.com"
          and strings.iends_with(.href_url.domain.subdomain, '.email')
          and strings.icontains(.href_url.path, '/r/')
          and strings.icontains(.href_url.query_params, 'id=')
          and strings.icontains(.href_url.query_params, 'p1=')
          // with redirects to google/doubleclick
          and regex.icontains(.href_url.query_params,
                              'p1=[^\&]*(?:google\.|doubleclick\.net)'
          )
        )
)
and sender.email.domain.root_domain not in ('samsungusa.com', 'samsung.com')

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

References

Tags

Attack surface reduction

Raw Content

name: "Open redirect: Samsung"
description: |
  Message contains use of the Samsung open redirect, but the sender is not Samsung.
references:
  - "https://twitter.com/ffforward/status/1232958609031598080?lang=en"
  - "https://twitter.com/JCyberSec_/status/1238488919135715328?s=20"
type: "rule"
severity: "medium"
source: |
  type.inbound
  and any(body.links,
          (
            .href_url.domain.domain == 't.info.samsungusa.com'
            and .href_url.path =~ '/r/'
          )
          or (
            .href_url.domain.root_domain == "samsung.com"
            and strings.iends_with(.href_url.domain.subdomain, '.email')
            and strings.icontains(.href_url.path, '/r/')
            and strings.icontains(.href_url.query_params, 'id=')
            and strings.icontains(.href_url.query_params, 'p1=')
            // with redirects to google/doubleclick
            and regex.icontains(.href_url.query_params,
                                'p1=[^\&]*(?:google\.|doubleclick\.net)'
            )
          )
  )
  and sender.email.domain.root_domain not in ('samsungusa.com', 'samsung.com')
tags:
  - "Attack surface reduction"
attack_types:
  - "Credential Phishing"
  - "Malware/Ransomware"
tactics_and_techniques:
  - "Open redirect"
detection_methods:
  - "Sender analysis"
  - "URL analysis"
id: "164ece9a-26ca-5872-9604-7e948722d627"