Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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=aashiqui+2+movie++480p In PDF document text

  • http://files.drdavidnjacobsen.com/uploads/1/3/0/8/130874330/gexuburox.pdfIn PDF document text
  • http://files.longosfinancialmarket.com/uploads/1/3/1/3/131398338/boboku.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/1/0428/9835/8432/files/40133843423.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3214/0186/files/99272383884.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/57393560526.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/5658/5114/files/mejijobela.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/usps_ecareer_candidate_profile_login.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7150/4537/files/metonymy_and_synecdoche_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0447/7042/7031/files/chapter_5_section_5_parliament_limits_the_english_monarchy.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/9617/6795/files/bofokokaxujosom.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/juvijonanitabizuwolev.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/dauntless_pangar_hammer_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8563/4463/files/34465325012.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0419/8038/files/korean_learning_books_free.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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