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/strik?keyword=simple+past+and+present+perfect+exercise+pdf In PDF document text

  • http://files.prettyfckingawesome.com/uploads/1/3/0/8/130874276/6039618.pdfIn PDF document text
  • http://mupag.yappingg.com/uploads/1/3/0/7/130775853/pevapara.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9499/0231/files/xugilimuzebikexetitabul.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5068/0991/files/skyrim_modding_guide_2019.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4003/8298/files/bluetooth_5._0_android_phones.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b837a2d9-22b4-4c7e-b6a2-ddc760244071/9832904477.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/10730d98-4bcd-42ef-91e2-d77dc574ab64/13777355347.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ebc0eadb-9631-4985-8040-47200c00e9d0/8023984198.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c43708c-00a0-42d2-b934-9156f1880437/2183937898.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/9083/5624/files/division_worksheets_year_2_tes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/2779/1009/files/10573771607.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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