Detection rules › Sublime MQL
Link: Google Cloud Storage with suspicious URL pattern
Detects inbound messages containing links to Google Cloud Storage (storage.googleapis.com) with suspicious URL path patterns that follow a specific actor-controlled structure commonly used for hosting malicious content.
Threat classification
Sublime's own taxonomy (not MITRE ATT&CK).
| Category | Values |
|---|---|
| Attack types | Credential Phishing |
| Tactics and techniques | Free file host, Evasion |
Event coverage
| Message attribute |
|---|
| body |
| body.links (collection) |
| type |
Rule body MQL
type.inbound
and any(body.links,
// storage.googleapis.com
.href_url.domain.domain == "storage.googleapis.com"
// observed pattern in actor controlled url path
and regex.contains(.href_url.path,
'^\/[a-z0-9]+-[a-z0-9]+-\d{8}\-[0-9a-f]+\/[^\.]+\.html'
)
)
Detection logic
Scope: inbound message.
Detects inbound messages containing links to Google Cloud Storage (storage.googleapis.com) with suspicious URL path patterns that follow a specific actor-controlled structure commonly used for hosting malicious content.
- inbound message
any of
body.linkswhere all hold:- .href_url.domain.domain is 'storage.googleapis.com'
- .href_url.path matches '^\\/[a-z0-9]+-[a-z0-9]+-\\d{8}\\-[0-9a-f]+\\/[^\\.]+\\.html'
Inspects: body.links, body.links[].href_url.domain.domain, body.links[].href_url.path, type.inbound. Sensors: regex.contains.
Indicators matched (2)
| Field | Match | Value |
|---|---|---|
body.links[].href_url.domain.domain | equals | storage.googleapis.com |
regex.contains | regex | ^\/[a-z0-9]+-[a-z0-9]+-\d{8}\-[0-9a-f]+\/[^\.]+\.html |