Detection rules › Sublime MQL
Suspicious link to Looker Studio (lookerstudio.google.com) from a new and unsolicited sender
This rule detects messages containing links to lookerstudio with a non standard lookerstudio template from a new and unsolicited sender.
Threat classification
Sublime's own taxonomy (not MITRE ATT&CK).
| Category | Values |
|---|---|
| Attack types | Credential Phishing |
| Tactics and techniques | Evasion, Social engineering |
Event coverage
Rule body MQL
type.inbound
and length(body.current_thread.text) < 1000
and regex.icontains(body.current_thread.text,
'(shared.{0,30}with you|View Document)'
)
and any(body.links, .href_url.domain.domain == "lookerstudio.google.com")
and (
profile.by_sender().prevalence in ("new", "outlier")
and not profile.by_sender().solicited
)
// 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
)
Detection logic
Scope: inbound message.
This rule detects messages containing links to lookerstudio with a non standard lookerstudio template from a new and unsolicited sender.
- inbound message
- length(body.current_thread.text) < 1000
- body.current_thread.text matches '(shared.{0,30}with you|View Document)'
any of
body.linkswhere:- .href_url.domain.domain is 'lookerstudio.google.com'
all of:
- profile.by_sender().prevalence in ('new', 'outlier')
not:
- profile.by_sender().solicited
any of:
all of:
- sender.email.domain.root_domain in $high_trust_sender_root_domains
not:
- headers.auth_summary.dmarc.pass
- sender.email.domain.root_domain not in $high_trust_sender_root_domains
Inspects: body.current_thread.text, body.links, body.links[].href_url.domain.domain, headers.auth_summary.dmarc.pass, sender.email.domain.root_domain, type.inbound. Sensors: profile.by_sender, regex.icontains. Reference lists: $high_trust_sender_root_domains.
Indicators matched (2)
| Field | Match | Value |
|---|---|---|
regex.icontains | regex | (shared.{0,30}with you|View Document) |
body.links[].href_url.domain.domain | equals | lookerstudio.google.com |