sublimemediumRule

Brand impersonation: State Farm

Detects messages impersonating State Farm insurance company through display name spoofing or similar variations, excluding legitimate communications from verified State Farm domains with proper DMARC authentication.

MITRE ATT&CK

T1566 T1566.001 T1566.002 T1598 T1598.003

initial-access

Detection Query

type.inbound
and (
  (
    regex.icontains(sender.display_name, 'state\s?farm')
    and not (
      strings.icontains(sender.display_name, "state farm")
      and strings.icontains(sender.display_name,
                            "center",
                            "arena",
                            "stadium",
                            "hall",
                            "classic",
                            "showdown",
                            "perks at work"
      )
    )
  )
  or (
    any(ml.nlu_classifier(body.current_thread.text).entities,
        .name == "org" and regex.imatch(.text, 'state farm')
    )
    and strings.icontains(body.current_thread.text,
                          'short survey',
                          'loyalty program'
    )
  )
)

// and the sender is not in org_domains or from State Farm domains
and not (
  sender.email.domain.valid
  and (
    sender.email.domain.root_domain in $org_domains
    or sender.email.domain.root_domain in $high_trust_sender_root_domains
    or sender.email.domain.root_domain in (
      "statefarm.com",
      "statefarminsurance.com",
      "statefarm.ca",
      "statefarmbank.com",
      "sfauthentication.com",
      "statefarmarena.com",
      "statefarmservice.com",
      "statefarmisthere.com",
      "digitalpayouts.com", // State Farm use this domain for claim payouts
      "aravo.com", // risk management company State Farm uses
      "statefarmclaims.com",
      "statefarmfeedback.com", // legit survey
      "statefarmsurveys.com", // legit survey
      "nationalesurvey.com",
      "sfdividend.com" // dividend payout email from State Farm
    )
  )
)
// negate highly trusted sender domains unless they fail DMARC authentication
and not (
  sender.email.domain.root_domain in $high_trust_sender_root_domains
  and coalesce(headers.auth_summary.dmarc.pass, false)
)

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

Raw Content

name: "Brand impersonation: State Farm"
description: "Detects messages impersonating State Farm insurance company through display name spoofing or similar variations, excluding legitimate communications from verified State Farm domains with proper DMARC authentication."
type: "rule"
severity: "medium"
source: |
  type.inbound
  and (
    (
      regex.icontains(sender.display_name, 'state\s?farm')
      and not (
        strings.icontains(sender.display_name, "state farm")
        and strings.icontains(sender.display_name,
                              "center",
                              "arena",
                              "stadium",
                              "hall",
                              "classic",
                              "showdown",
                              "perks at work"
        )
      )
    )
    or (
      any(ml.nlu_classifier(body.current_thread.text).entities,
          .name == "org" and regex.imatch(.text, 'state farm')
      )
      and strings.icontains(body.current_thread.text,
                            'short survey',
                            'loyalty program'
      )
    )
  )
  
  // and the sender is not in org_domains or from State Farm domains
  and not (
    sender.email.domain.valid
    and (
      sender.email.domain.root_domain in $org_domains
      or sender.email.domain.root_domain in $high_trust_sender_root_domains
      or sender.email.domain.root_domain in (
        "statefarm.com",
        "statefarminsurance.com",
        "statefarm.ca",
        "statefarmbank.com",
        "sfauthentication.com",
        "statefarmarena.com",
        "statefarmservice.com",
        "statefarmisthere.com",
        "digitalpayouts.com", // State Farm use this domain for claim payouts
        "aravo.com", // risk management company State Farm uses
        "statefarmclaims.com",
        "statefarmfeedback.com", // legit survey
        "statefarmsurveys.com", // legit survey
        "nationalesurvey.com",
        "sfdividend.com" // dividend payout email from State Farm
      )
    )
  )
  // negate highly trusted sender domains unless they fail DMARC authentication
  and not (
    sender.email.domain.root_domain in $high_trust_sender_root_domains
    and coalesce(headers.auth_summary.dmarc.pass, false)
  )

attack_types:
  - "Credential Phishing"
tactics_and_techniques:
  - "Impersonation: Brand"
  - "Social engineering"
  - "Spoofing"
detection_methods:
  - "Header analysis"
  - "Sender analysis"
id: "bcf7eba0-ac94-52c7-81b3-5abd8019f564"