Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.ru/pify?keyword=adobe+acrobat+reader+edit+pdf+free In PDF document text

  • http://files.kokuabehavioralhealth.org/uploads/1/3/1/1/131164176/67eb7f46307f965.pdfIn PDF document text
  • http://gojux.advocatesfordiversity.org/uploads/1/3/1/6/131636725/334f3b21a464.pdfIn PDF document text
  • http://files.tlcsupply.com/uploads/1/3/0/7/130775174/16a2cf0071f9d.pdfIn PDF document text
  • http://files.emaratshipping.com/uploads/1/3/0/9/130969993/1631a7714.pdfIn PDF document text
  • http://files.mystarsandstripes.com/uploads/1/3/0/7/130776016/741037.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/1/0427/8734/0454/files/2543825088.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/fundamentals_of_calculus.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/zadakuroxufa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/athens_metro_map_english.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5801/1035/files/90116706185.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3187/1139/files/all_creatures_great_and_small_james_herriot_free_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/dazugiwulukizani.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3058/4213/files/gibukuwakewiware.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/67171018958.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4915/5740/files/28382329612.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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