Malicious PDF — malware analysis report

Heuristics 6

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
  Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ttraff.cc/123?keyword=volusia+county+business+tax+receipt+number In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f874f32341e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369143/normal_5fa0d55d433e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408583/normal_5f934428a8976.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369330/normal_5f90d63d40477.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384463/normal_5f99b3aa37a28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366050/normal_5f89a878cf5e0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383446/normal_5f9150fbcc05f.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/508fe900-5dd3-4a97-bbfe-4c68084089f6/lovuf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/771e6f66-4af5-4f5a-9af5-42274328b550/342489234.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1a28b2aa-c5ec-4ca2-aa46-e93aa96e26df/fafuwijopu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/21e7945b-6e27-47a7-af5a-ddad10a54c4a/ryobi_p108_battery_home_depot.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2186/0505/files/jackson_smith_son_of_patti_smith.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df65d95a-e1d5-4187-80cf-8aca2a4b933e/40454824687.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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