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://gettraff.ru/wb?keyword=practica%20de%20laboratorio%20de%20quimica%20soluciones In PDF document text

  • https://site-1038412.mozfiles.com/files/1038412/58453618093.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365642/normal_5f86fc777bac4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366003/normal_5f87006ae063d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366647/normal_5f87723a8b369.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365660/normal_5f87b34a0ad43.pdfIn PDF document text
  • https://site-1039173.mozfiles.com/files/1039173/40981394211.pdfIn PDF document text
  • https://site-1040182.mozfiles.com/files/1040182/bulabelitejigumodexe.pdfIn PDF document text
  • https://site-1041934.mozfiles.com/files/1041934/90829438966.pdfIn PDF document text
  • https://jizonuwuko.weebly.com/uploads/1/3/0/8/130814311/7fec12cfd.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/4918653.pdfIn PDF document text
  • https://polabufasol.weebly.com/uploads/1/3/2/8/132814050/judosigenave-punatu-suzudosi.pdfIn PDF document text
  • https://fanavepuru.weebly.com/uploads/1/3/1/8/131871984/8d49b3d.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007c34.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007c34.bin)
  • https://cdn.shopify.com/s/files/1/0479/5331/3959/files/sagitopiwolaxasarut.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/87733414654.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/vakojavu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4312/5917/files/spanish_pronunciation_guide_for_english_speakers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/7485/3793/files/didema.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27007f86-4998-4b3e-b3f9-8c1545a14003/2861260121.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/063c45ab-8c36-475a-b439-ed29a222d093/87503824969.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3eb4b73e-e048-40ee-959d-87d3abaa31d9/94204823815.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5dd0f935-226b-4116-b9bb-20b0a52cb511/51134333349.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/67e668be-1b4d-4699-94c1-aee00fdec837/2258099658.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_off00007c34.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000b2c1.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000b2c1.bin)

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