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/pify?keyword=college+trigonometry+test+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4403807/normal_5f947b80225b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366343/normal_5f884939c135d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392651/normal_5f959926ac2d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369486/normal_5f887fd22179b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381094/normal_5f95ed2d7fe61.pdfIn PDF document text
  • https://vurofagulomefu.weebly.com/uploads/1/3/1/4/131452840/xokunomafel.pdfIn PDF document text
  • https://kesolijizik.weebly.com/uploads/1/3/4/2/134265964/ab664924492036b.pdfIn PDF document text
  • https://sijoxedewi.weebly.com/uploads/1/3/4/3/134346210/8482556.pdfIn PDF document text
  • https://wikoriduban.weebly.com/uploads/1/3/4/3/134341401/jixulomubexa.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071f3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071f3.bin)
  • https://cdn.shopify.com/s/files/1/0436/0408/2852/files/79289594876.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/4647/7210/files/zowirunag.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9462/0333/files/exercices_feminin_et_masculin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3870/2748/files/40908509425.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/6814/9926/files/rcmp_polygraph_questions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/7757/3054/files/matlab_matrix_tutorial.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/9449/5398/files/pedujaza.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5304/7195/files/65082583826.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8269/7889/files/sof_olympiad_trainer_apk_free_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7696/9157/files/labyrinth_goblin_king_and_sarah.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8491/3076/files/gazofib.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/3756/4838/files/gastric_ulcer_disease.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/98106477901.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_off000071f3.bin)

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