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/aws?keyword=descargar+after+2+pdf+espa%25C3%25B1ol In PDF document text

  • https://cdn-cms.f-static.net/uploads/4393635/normal_5f9210120eb80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368505/normal_5f90aac390756.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371807/normal_5f8fcbf0f3bb6.pdfIn PDF document text
  • https://zidabowejixu.weebly.com/uploads/1/3/1/1/131163559/8342363.pdfIn PDF document text
  • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/5162005.pdfIn PDF document text
  • https://fipuvulozubonoj.weebly.com/uploads/1/3/4/3/134313175/lidokifumalevanere.pdfIn PDF document text
  • https://sigakoge.weebly.com/uploads/1/3/4/4/134437147/kezora_gametugotu_latimubunoli_pagewop.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/6431815.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006617.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006617.bin)
  • https://s3.amazonaws.com/felasorarabipis/81899764827.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/6068955255.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/3951/3502/files/emerson_tool_company_address.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0876/4321/files/basic_calculus_formulas.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3290/2806/files/meet_the_quagmires_imdb.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/pathophysiology_of_cerebral_malaria.pdfIn PDF document text
  • https://s3.amazonaws.com/zifozujiwi/english_grammar_aptitude_questions_and_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/11432052530.pdfIn PDF document text
  • https://s3.amazonaws.com/tokit/molecular_dynamics_simulations_of_biomolecules.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/basic_embroidery_stitches_tutorial.pdfIn PDF document text
  • https://s3.amazonaws.com/turip/cdsco_approved_drug_list_2019.pdfIn PDF document text
  • https://s3.amazonaws.com/wewuxuviwar/8649402597.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/b_pharmacy_colleges_list.pdfIn PDF document text
  • https://s3.amazonaws.com/moduxanakuri/allegory_of_the_cave_free.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/fodifok.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 extracted file (font_00_sfnt_off00006617.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00009e4d.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00009e4d.bin)

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