sublimemediumRule

Impersonation: Salesforce fake campaign failure notification

Detects messages impersonating Salesforce with urgent language about failed or cancelled campaigns, containing external links from first-time senders outside legitimate Salesforce domains.

MITRE ATT&CK

T1566 T1566.001 T1566.002 T1598 T1598.003

initial-access

Detection Query

type.inbound
and strings.icontains(sender.display_name, "salesforce")
and sender.email.domain.root_domain not in (
  "salesforce.com",
  "force.com",
  "site.com",
  "agentforce.com"
)
and length(attachments) == 0
// theare are external links (not org or SF domains)
and length(filter(body.links,
                  .href_url.domain.domain not in $org_domains
                  and .href_url.domain.root_domain not in (
                    "salesforce.com",
                    "force.com",
                    "site.com" // salesforce CRM 
                  )
           )
) > 0
and length(body.current_thread.text) <= 600
and strings.contains(body.current_thread.text, 'campaign')
and any(ml.nlu_classifier(body.current_thread.text).entities,
        .name == "urgency" and regex.icontains(.text, "(failed|cancelled)")
)
and any(ml.nlu_classifier(body.current_thread.text).entities,
        .name == "request"
)

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

Raw Content

name: "Impersonation: Salesforce fake campaign failure notification"
description: "Detects messages impersonating Salesforce with urgent language about failed or cancelled campaigns, containing external links from first-time senders outside legitimate Salesforce domains."
type: "rule"
severity: "medium"
source: |
  type.inbound
  and strings.icontains(sender.display_name, "salesforce")
  and sender.email.domain.root_domain not in (
    "salesforce.com",
    "force.com",
    "site.com",
    "agentforce.com"
  )
  and length(attachments) == 0
  // theare are external links (not org or SF domains)
  and length(filter(body.links,
                    .href_url.domain.domain not in $org_domains
                    and .href_url.domain.root_domain not in (
                      "salesforce.com",
                      "force.com",
                      "site.com" // salesforce CRM 
                    )
             )
  ) > 0
  and length(body.current_thread.text) <= 600
  and strings.contains(body.current_thread.text, 'campaign')
  and any(ml.nlu_classifier(body.current_thread.text).entities,
          .name == "urgency" and regex.icontains(.text, "(failed|cancelled)")
  )
  and any(ml.nlu_classifier(body.current_thread.text).entities,
          .name == "request"
  )
attack_types:
  - "Credential Phishing"
tactics_and_techniques:
  - "Impersonation: Brand"
  - "Social engineering"
detection_methods:
  - "Content analysis"
  - "Natural Language Understanding"
  - "Sender analysis"
  - "URL analysis"
id: "d66000ca-1ee7-5f62-8355-0db7c44743fc"