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://trafffi.ru/123?keyword=cat+ninja+book+5 PDF link annotation

  • https://jezagegilefu.weebly.com/uploads/1/3/4/3/134307882/5900415.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389085/normal_5f91162caf0c4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4422161/normal_5f993107960ec.pdfIn PDF document text
  • https://sogazefod.weebly.com/uploads/1/3/4/0/134000298/solixin_fekusiwa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402963/normal_5f9a986904893.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365540/normal_5f88824e7bd99.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367290/normal_5f97714b3657d.pdfIn PDF document text
  • https://jabiratunibi.weebly.com/uploads/1/3/2/6/132683422/7743506.pdfIn PDF document text
  • https://burufazifefep.weebly.com/uploads/1/3/4/5/134584298/rasademumol-fikeluju.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/7bb6207a-4517-45ce-8dfc-f9521b508242/levoru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/818b9a53-c112-4a92-9864-82cdd5d3d661/history_of_coding.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12d67415-4e33-4e9d-a1a3-e25cce6a4c4c/the_things_you_can_see_only_when_you.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/562e9679-28ff-4a2e-a53c-0c893e35bae5/lapupopulukilawud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/434f4d2e-4928-4ea0-840a-7db343ca05a2/82638711590.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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