sublimemediumRule

Open redirect: typedrawers.com

Detects messages containing links or QR codes pointing to typedrawers.com/home/leaving with target parameter, sent from non-trusted domains or authenticated sources failing DMARC checks. Considers sender reputation and requires either unsolicited contact or prior malicious activity without false positives.

MITRE ATT&CK

T1566 T1566.001 T1566.002 T1598 T1036 T1027

defense-evasioninitial-access

Detection Query

type.inbound
and (
  any(body.links,
      .href_url.domain.root_domain == "typedrawers.com"
      and .href_url.path == "/home/leaving"
      and strings.icontains(.href_url.query_params, 'target=')
  )
  or any(attachments,
         (
           .file_type in $file_types_images
           or .file_extension in $file_extensions_macros
           or .file_type == "pdf"
         )
         and any(file.explode(.),
                 .scan.qr.type == "url"
                 and .scan.qr.url.domain.root_domain == "typedrawers.com"
                 and .scan.qr.url.path == "/home/leaving"
                 and strings.icontains(.scan.qr.url.query_params, 'target=')
         )
  )
)

// negate highly trusted sender domains unless they fail DMARC authentication
and (
  (
    (
      sender.email.domain.root_domain in $high_trust_sender_root_domains
      or sender.email.domain.root_domain == "typedrawers.com"
    )
    and not headers.auth_summary.dmarc.pass
  )
  or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

Raw Content

name: "Open redirect: typedrawers.com"
description: "Detects messages containing links or QR codes pointing to typedrawers.com/home/leaving with target parameter, sent from non-trusted domains or authenticated sources failing DMARC checks. Considers sender reputation and requires either unsolicited contact or prior malicious activity without false positives."
type: "rule"
severity: "medium"
source: |
  type.inbound
  and (
    any(body.links,
        .href_url.domain.root_domain == "typedrawers.com"
        and .href_url.path == "/home/leaving"
        and strings.icontains(.href_url.query_params, 'target=')
    )
    or any(attachments,
           (
             .file_type in $file_types_images
             or .file_extension in $file_extensions_macros
             or .file_type == "pdf"
           )
           and any(file.explode(.),
                   .scan.qr.type == "url"
                   and .scan.qr.url.domain.root_domain == "typedrawers.com"
                   and .scan.qr.url.path == "/home/leaving"
                   and strings.icontains(.scan.qr.url.query_params, 'target=')
           )
    )
  )
  
  // negate highly trusted sender domains unless they fail DMARC authentication
  and (
    (
      (
        sender.email.domain.root_domain in $high_trust_sender_root_domains
        or sender.email.domain.root_domain == "typedrawers.com"
      )
      and not headers.auth_summary.dmarc.pass
    )
    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
  )
  
attack_types:
  - "Credential Phishing"
tactics_and_techniques:
  - "Evasion"
  - "Open redirect"
  - "QR code"
  - "Social engineering"
detection_methods:
  - "Content analysis"
  - "File analysis"
  - "QR code analysis"
  - "Sender analysis"
id: "158d9e95-4ce4-58c7-83ce-56e5942db1e6"