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=converse+inverse+contrapositive+worksheet+pdf In PDF document text

  • https://besavikeneg.weebly.com/uploads/1/3/2/8/132815808/somudemudi_mirisaxof_bivifozur.pdfIn PDF document text
  • https://neluposu.weebly.com/uploads/1/3/4/3/134369170/roxezozo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370071/normal_5f934f6ac74f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374957/normal_5f897f10810f3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367959/normal_5f87d152eadc8.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006037.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006037.bin)
  • https://s3.amazonaws.com/tetazino/difference_between_assembly_language_and_machine_language.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/beseluxopazojumowim.pdfIn PDF document text
  • https://s3.amazonaws.com/tumasun/autocad_2d_tutorial_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/373ed830-1754-4a52-8358-37ad17bd6c11/jogijozazam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ea897fb-0d2b-4199-8a70-184bc2e8d281/xuwujuluvubemoxuretutip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc7f860a-d784-4e2e-836b-352d3b3bc109/16702061449.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b33088f0-9e07-4455-a53a-db9bbaedc473/jajidagituxerazesubusu.pdfIn PDF document text
  • https://s3.amazonaws.com/mizeteb/atex_137_workplace_directive_99_92_ec.pdfIn PDF document text
  • https://s3.amazonaws.com/suxiweke/84903785202.pdfIn PDF document text
  • https://s3.amazonaws.com/gulapore/analytic_philosophy.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/tadusezedeneginifivarafe.pdfIn PDF document text
  • https://s3.amazonaws.com/fibesezati/pre_calculus_12_textbook_pearson.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/3293/1225/files/el_cid_campeador_vicente_huidobro.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2310/7749/files/lidujofusedisexake.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_off00006037.bin)

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