Brand impersonation: UPS

 1name: "Brand impersonation: UPS"
 2description: |
 3    Impersonation of United Parcel Service (UPS).
 4references:
 5  - "https://www.bleepingcomputer.com/news/security/phishing-campaign-uses-upscom-xss-vuln-to-distribute-malware/"
 6  - "https://twitter.com/DanielGallagher/status/1429794038463479813"
 7  - "https://www.ups.com/us/en/help-center/legal-terms-conditions/fight-fraud/recognize.page"
 8type: "rule"
 9severity: "low"
10source: |
11  type.inbound
12  and sender.email.domain.root_domain not in ("ups.com", "upsemail.com")
13  and (
14    sender.display_name in~ ("UPS My Choice", "UPS Services")
15    or strings.ilike(sender.email.local_part, "*united*parcel*service*")
16    or strings.ilike(sender.email.domain.domain, '*united*parcel*service*')
17    or strings.icontains(subject.subject, 'UPS delivery')
18    or sender.email.local_part =~ "ups"
19    or regex.icontains(sender.display_name,
20                       "U[^a-zA-Z]P[^a-zA-Z]S(?:[^a-zA-Z]|$)"
21    )
22  )
23  and (
24    // Observed in the "footer" of impersation messages
25    // added this due to the UPS image not loading on some emails
26    strings.icontains(body.current_thread.text, "United Parcel Service of")
27    or any(ml.logo_detect(file.message_screenshot()).brands, .name is not null)
28  )
29  and sender.email.email not in $recipient_emails
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  )  
39
40attack_types:
41  - "Credential Phishing"
42tactics_and_techniques:
43  - "Impersonation: Brand"
44  - "Lookalike domain"
45  - "Social engineering"
46detection_methods:
47  - "Computer Vision"
48  - "Sender analysis"
49id: "73b68869-5720-5dc3-b4bc-15730de972d8"