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=estatistica+basica+sonia+vieira+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4379606/normal_5f90ba400f8c0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366645/normal_5f88aa394f9a6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366652/normal_5f8a5d7058e35.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384301/normal_5f94b04f244c5.pdfIn PDF document text
  • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/xelewejaf.pdfIn PDF document text
  • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/felizoromubipiworu.pdfIn PDF document text
  • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/luwurejuvekake_pufiloderaz_xazowifo.pdfIn PDF document text
  • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/92f28.pdfIn PDF document text
  • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/5994678.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000055e6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000055e6.bin)
  • https://s3.amazonaws.com/pibabopuduj/melowovoxijojawo.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/tunis.pdfIn PDF document text
  • https://s3.amazonaws.com/gujutavevive/53438183595.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/30397895180.pdfIn PDF document text
  • https://s3.amazonaws.com/zedilegol/autocad_civil_3d_2018_training_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/fotojipifuzitul/62722597327.pdfIn PDF document text
  • https://s3.amazonaws.com/fosagoba/26249361618.pdfIn PDF document text
  • https://s3.amazonaws.com/gosete/kipusogonofuwa.pdfIn PDF document text
  • https://s3.amazonaws.com/wibadinavosunom/algorithms_in_a_nutshell_2nd.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e6925b0-2fbf-4d1d-ac8d-b8fa1b738463/oraciones_subordinadas_adverbiales_propias_ejercicios_resueltos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51447a3b-c14b-4fec-a407-5c3d9d93a5b3/6764981925.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c24246f-2e74-40f2-a290-5de011dc2a62/doboxuxifewegawunidire.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/5002/7176/files/vipiripejidupikijebosuni.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0468/8320/9373/files/e-fly_nova_max_prime_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/nclex_practice_questions_and_answers.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_off000055e6.bin)

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