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=hiketop%252B+premium+apk+free+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366384/normal_5f872d1c7b87a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384645/normal_5f9133cf5e262.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368770/normal_5f8b71363c11d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369919/normal_5f8d1c9484696.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413242/normal_5f96644b2ccf6.pdfIn PDF document text
  • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/dapakolun.pdfIn PDF document text
  • https://netulomite.weebly.com/uploads/1/3/2/8/132814473/nofuxebunem.pdfIn PDF document text
  • https://pimupaxepa.weebly.com/uploads/1/3/1/8/131857198/afd89ea.pdfIn PDF document text
  • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/4631034.pdfIn PDF document text
  • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/3f295ca1.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000061c1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000061c1.bin)
  • https://cdn.shopify.com/s/files/1/0433/7565/7125/files/article_370_35a_in_telugu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8504/6974/files/adoption_agency_form.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/7070/1735/files/13099657240.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0217/0008/files/63139056444.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/4649/2565/files/hipertiroidismo_en_perros_y_gatos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/4054/6209/files/chapter_1-4_their_eyes_were_watching_god.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/0038/5695/files/bushnell_yardage_pro_500_rangefinder_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/fenatagazise/kenijazoduwolasegubas.pdfIn PDF document text
  • https://s3.amazonaws.com/fedufiporara/naval_architecture_and_marine_engineering_books.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_off000061c1.bin)

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