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/wix?keyword=icd-10-cm+and+icd-10-pcs+coding+handbook+with+answers+2018+pdf In PDF document text

  • http://dakofuz.my-agency-site.com/uploads/1/3/1/1/131164250/rukusogapuz-matoso.pdfIn PDF document text
  • http://wodozog.incendiumarts.com/uploads/1/3/1/4/131452883/39380.pdfIn PDF document text
  • http://files.stmanvel.org/uploads/1/3/1/6/131606271/wipotil.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://050b1ef8-f38f-4a9a-a2a9-f9bb0462139f.filesusr.com/ugd/0a51c1_8d3710b3fe9f4674b3298f9a385d30c1.pdf?index=trueIn PDF document text
  • https://a890ad2e-9b24-402e-8235-0daeea7fec0f.filesusr.com/ugd/696117_1ed0770042ec42849505141ebac7bbfb.pdf?index=trueIn PDF document text
  • https://1c51b33d-4e3b-431e-9076-6a93e4f0f9d3.filesusr.com/ugd/4cfbbd_0bec60ae2d4b4a2fb94d252d7db754d8.pdf?index=trueIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/jagibukuvit.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0462/3820/4053/files/47253147285.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/oster_bread_maker_5838_recipes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/pokemon_ash_gray_hack_download_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/letukopakafenumuzo.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 PDF document text

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