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://cctraff.ru/123?keyword=recent+clipboard+history+android In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365624/normal_5f86f50532aed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372085/normal_5f8a7677950ad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376088/normal_5f8c53d8d9e7f.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000671c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000671c.bin)
  • https://cdn.shopify.com/s/files/1/0266/8222/8910/files/west_warwick_school_department_jobs.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3173/1610/files/niduligotexilalalitumavu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/8402/6527/files/43518742398.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8291/4723/files/pujofapuvoruma.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/4409/7176/files/fate_extella_link_trophy_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/2132/0870/files/625_gas_block_journal.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9053/7373/files/dicionario_ingles_portugues_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12af0277-1be3-41ab-ac5d-fd256a9d34d6/westwood_t1200_for_sale.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d6321521-9c0c-4b48-936a-3f4fe27904dd/pojokexeroj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/acc9e595-a849-4ae3-bc51-cd0bb5ae4d4c/2250523242.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8c41dc89-a736-4ac7-bf6e-88824bc21337/kojepevalefowavisejadise.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/47acd8fc-3eda-4990-8a73-3c2aea0d6aa2/55978314632.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db87f80d-8e4e-432b-9630-ddc8beb8c864/tivazus.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/914296e1-f500-407b-91ff-93b79badd35f/pajaguwofiwudafumiwimob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/be5bb836-1d4f-4f04-9f60-696e6bf4cd93/goresiwabokeruponoviboje.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/8783/4525/files/18264526853.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2864/3481/files/hampton_bay_fan_remote_holder.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2473/5643/files/60876749082.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0962/8570/files/loxokizusek.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/8986/9982/files/wirowusawapoxejemaga.pdfIn PDF document text
  • https://forums.androidcentral.com/showthread.php?t=857503&s=90cc384315cfa85cb34cb914431f7c3cIn 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
  • https://forums.androidcentral.com/showthread.php?t=857503&s=90cc384315cfa85cb34cb914431f7c3cIn 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 extracted file (font_00_sfnt_off0000671c.bin)

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