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://ttraff.link/aws?keyword=aprendizajes+clave+pdf+primer+grado+primaria In PDF document text

  • https://cdn-cms.f-static.net/uploads/4390381/normal_5f90170cef192.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373983/normal_5f9198437ca5e.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000595a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000595a.bin)
  • https://uploads.strikinglycdn.com/files/cdc9b56a-c601-41ed-bde0-d5467d9a9a6f/publication_502.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9af1f15a-dee7-4eda-9b3e-6b1b59a47aeb/abnormal_psychology_textbook_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aee640f6-f2fd-4c98-8a6a-32dc2e7f56db/27467809236.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b7a10e97-d00e-4cc4-b3ea-cf082ae9dce6/pevuf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/edb9536e-57be-4370-8b44-51fe3271b807/college_louis_jouvet_07320.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3928/3608/files/american_holly_tree_leaves.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6088/7193/files/best_free_compressor_software_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6897/2444/files/divesamuni.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7070/8129/files/10370303111.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/1062/8008/files/joxidadibizufibawi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9105/8076/files/46125980112.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7778/2690/files/speedmaster_n1_choukai.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9105/7568/files/ladifebati.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/6094/3769/files/37395698598.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/673602b0-4fb4-48a7-8048-d2f954c6cd64/3256013906.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b1c4d395-8611-42b4-b75b-ba37412f10f1/pakobuj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81ddeacb-834a-443c-941d-eb0f4516c754/.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e40dbe1-03c9-4798-a9e5-af8bad2359e9/93304536306.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/jinopilanamekiwixivif.pdfIn PDF document text
  • https://s3.amazonaws.com/xeroguru/attestation_de_prise_en_charge_visa_tudiant.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_off0000595a.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00008ef5.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00008ef5.bin)

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