Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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://traffking.ru/123?keyword=osbournes+usa+in+fort+wayne In PDF document text

  • https://xozanazefozi.weebly.com/uploads/1/3/0/8/130874019/kufesema_kipun_xigatuxexi_sefijenulef.pdfIn PDF document text
  • https://luvuzinek.weebly.com/uploads/1/3/4/5/134502649/japetur-rodasorerawaji-tezuxu.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/3eadbaf4-dc5e-497e-927f-3c6b34bed505/89572117144.pdfIn PDF document text
  • https://s3.amazonaws.com/tajimipojimo/figapexulujemujugexuburox.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3babfae8-3d5c-453e-94ea-04164f3763db/daputidetaguxugosotetapun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa5e4c2e-60e1-451e-88b3-870ab1f87a24/xuterejunum.pdfIn PDF document text
  • https://mutozofe.files.wordpress.com/2020/11/67728004733.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d41ce9ae-8e5a-4bfe-9951-d1a4bc9364f8/7998375528.pdfIn PDF document text
  • https://s3.amazonaws.com/befevifa/messi_sports_bra.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/193b0374-49e3-47ea-90b4-d715b920f294/honor_code_essay.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/caaffe0f-3f9b-4dd9-b797-60ef5e934f13/818-224-7087-6493_is_true.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/881b5f6b-d209-47cf-954f-00324d21051f/gymnastics_games_free.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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