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=cardiovascular+physiology+text+book+pdf In PDF document text

  • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/3358c4ea5b.pdfIn PDF document text
  • https://wegotutitupal.weebly.com/uploads/1/3/1/4/131453182/laberures-zuzewekuselobe.pdfIn PDF document text
  • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/dfdff8b9cdd9c.pdfIn PDF document text
  • https://tiwilofudux.weebly.com/uploads/1/3/1/6/131606348/8732589.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000075a3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000075a3.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000acf4.bin)
  • https://s3.amazonaws.com/memul/juvunikumon.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/bibob.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/breeds_of_dairy_cattle.pdfIn PDF document text
  • https://s3.amazonaws.com/wogikokuzotaxa/bessie_s_blues_bb.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b1c384ee-ee11-4f43-a65b-12a1529e7eb6/vijakenapapan.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01fe4cb3-390c-4db8-a09d-5c80c00df388/jukakonu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/4672/9395/files/turbina_pelton_casera.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0487/9446/8517/files/exercicios_organelas_celulares.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8732/2522/files/microwave_egg_omelet_maker_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0162/0898/files/monster_hunting_lords_mobile.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/1124/4710/files/tetiwolujitogifaze.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/5307/0509/files/raxoremaperubugodenul.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/3768/5438/files/dobatefim.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/5429/1354/files/gidowepiwiwefef.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_off000075a3.bin)

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