• Sublime Core Feed
Medium Severity

Brand impersonation: Aramco

Labels

BEC/Fraud
Impersonation: Brand
Lookalike domain
Social engineering
Content analysis
Header analysis
HTML analysis
Natural Language Understanding
Sender analysis

Description

Impersonation of the petroleum and natural gas company Saudi Aramco.

References

No references.

Sublime Security
Created Mar 7th, 2024 • Last updated Oct 10th, 2024
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and length(filter(body.links, .href_url.domain.valid)) < 25
and (
  strings.ilike(sender.display_name, '*aramco*')
  or strings.ilevenshtein(sender.display_name, 'aramco') <= 1
  or strings.ilike(sender.email.domain.domain, '*aramco*')
  or strings.ilike(subject.subject, '*aramco*')
)
and any(ml.nlu_classifier(body.current_thread.text).entities,
        .name == "financial" or .name == "request"
)
and (
  (
    any(ml.nlu_classifier(body.current_thread.text).entities,
        strings.ilike(.text, "*aramco*")
    )
    and any(ml.nlu_classifier(body.current_thread.text).entities,
            .name == "urgency"
    )
  )
  or regex.icount(body.current_thread.text, "vendor|supplier") > 3
)

// Aramco domain negations
and sender.email.domain.root_domain not in~ (
  'aramco.com',
  'aramcoamericas.com',
  'aramcoventures.com',
  'aramcoworld.com'
)

// negate emails sent by the Aston Martin Aramco F1 Team
and sender.email.domain.root_domain != "astonmartinf1.com"
and not strings.icontains(subject.subject, 'Aston Martin')
and not regex.icontains(subject.subject, 'Formula (?:One|1)', '\bF1\b')

// negate highly trusted sender domains unless they fail DMARC authentication
and (
  (
    sender.email.domain.root_domain in $high_trust_sender_root_domains
    and not headers.auth_summary.dmarc.pass
  )
  or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)
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