Brand impersonation: FedEx
Impersonation of the shipping provider FedEx.
Sublime rule (View on GitHub)
1name: "Brand impersonation: FedEx"
2description: |
3 Impersonation of the shipping provider FedEx.
4references:
5 - "https://www.fedex.com/en-us/trust-center/report-fraud/fraudulent-email-examples.html"
6type: "rule"
7severity: "low"
8source: |
9 type.inbound
10 and (
11 sender.display_name in~ ('fedex', 'fedex shipment', 'fedex tracking updates')
12 or strings.ilevenshtein(sender.display_name, 'fedex') <= 1
13 or regex.icontains(sender.display_name, '^Fed-?ex')
14 or strings.ilike(sender.email.domain.domain, '*fedex*')
15 )
16
17 and sender.email.domain.root_domain not in~ (
18 'fedex.com',
19 'cj.com', // CJ is a global affiliate marketing network
20 'sedex.com', // sedex.com is not affiliated with FedEx, but is an apparent FP
21 'myworkday.com',
22 'billtrust.com',
23 'flying-cargo.rs', // Serbian arm of Fedex (https://www.fedex.com/en-rs/customer-support.html)
24 'confirmit.com' // survey/market research company
25 )
26 and (
27 not profile.by_sender().any_messages_benign
28 and not profile.by_sender().solicited
29 )
30
31 // negate highly trusted sender domains unless they fail DMARC authentication
32 and (
33 (
34 sender.email.domain.root_domain in $high_trust_sender_root_domains
35 and not headers.auth_summary.dmarc.pass
36 )
37 or sender.email.domain.root_domain not in $high_trust_sender_root_domains
38 )
39attack_types:
40 - "Credential Phishing"
41tactics_and_techniques:
42 - "Impersonation: Brand"
43 - "Lookalike domain"
44 - "Social engineering"
45detection_methods:
46 - "Header analysis"
47 - "Sender analysis"
48id: "94a2b602-2bc1-5ea3-941e-752e3a2235cf"