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://gettraff.ru/wb?keyword=decimals%20to%20fractions%20worksheet%20math%20drills In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368770/normal_5f8b5bf22f705.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366947/normal_5f8b4f3b9fc0f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369784/normal_5f888deee51ca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367905/normal_5f8f368dbac62.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/1912a937-3fe1-4285-aeb9-58b473df8d5a/81427714265.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4aa5f66a-0a62-41eb-aefb-ca4c63f8c1a4/jinuk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2deae2a8-55df-478f-ba25-e20aa5091040/28819753156.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3556/4949/files/la_bella_durmiente_en_ingles.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0638/5576/files/52658457392.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/5875/7277/files/ejercicios_de_palabras_monosemicas_y_polisemicas.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/8980/3460/files/munchkin_rick_and_morty_instructions.pdfIn PDF document text
  • https://s3.amazonaws.com/risisipajole/arnaud_desjardins_libros.pdfIn PDF document text
  • https://s3.amazonaws.com/solonebosop/67553110240.pdfIn PDF document text
  • https://s3.amazonaws.com/pugomonapoxuxe/29675022876.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/80102994448.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/49333797595.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8396/5634/files/home_sleep_test_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0315/3048/files/ishiiruka_dolphin_android_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/old_fashioned_telephone_table.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/4970/5881/files/doom_tyrones_unblocked_games.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b10b5604-3a1f-4cce-b5b1-406688361763/28741317187.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75ea1623-d104-411a-a936-0dcc160e7023/62312667450.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/71184b11-df9e-4373-b9b6-130eb5cce95a/kopufatarip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5adfa05b-5e0a-43fa-a9e2-dcd4616eba03/kenwood_mc_60_manual.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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