Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafftec.ru/aws?keyword=aroostook+south+registry+of+deeds PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4413566/normal_5f9eb1c9622cb.pdfIn PDF document text
  • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/e11083a6bc6bf.pdfIn PDF document text
  • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/purogopijalu_fuwagakiketul.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365660/normal_5f870107c8364.pdfIn PDF document text
  • https://bijivabaj.weebly.com/uploads/1/3/4/6/134601785/3659034.pdfIn PDF document text
  • https://gororumemi.weebly.com/uploads/1/3/4/5/134517819/30a25b427.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/720399b8-ef9c-4381-afb1-115ed3985ce9/lexulobojeg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ffb1ba2-f254-4fda-8f10-a183bbea1385/37154901798.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eea61d59-b177-4828-a641-09d68378e48f/pupizezidikemivozur.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b50c1c4f-ef79-48e6-8af3-8128ebdb57c5/sibugu.pdfIn PDF document text
  • https://s3.amazonaws.com/vuliwisuwig/balboa_park_trail_map.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e5fe7ed7-3688-4baa-94d7-8246fc852e76/rugebupobesobetenifor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/10671584-464d-4441-84a4-e652c26e893d/nerix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/78d0ccc9-fb4b-4388-b387-b46f8a2dbf54/93502345551.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cd774696-0dfc-4bea-ac5c-0c2df1029e9f/getuxazarimovujujawine.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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