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.
• 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
• 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.cc/pify?keyword=american+english+file+starter+pdf+%25D8%25AF%25D8%25A7%25D9%2586%25D9%2584%25D9%2588%25D8%25AF In PDF document text

  • http://rajufox.citizensforjustwater.org/uploads/1/3/1/0/131069839/kadobegok.pdfIn PDF document text
  • http://files.primepropertiescebu.com/uploads/1/3/0/8/130814101/74713edb1f.pdfIn PDF document text
  • http://files.anvh.com/uploads/1/3/1/6/131606803/7416240.pdfIn PDF document text
  • http://guwitojep.redanaes.com/uploads/1/3/2/7/132740214/zajekureselomox.pdfIn PDF document text
  • http://files.naifamt.org/uploads/1/3/1/4/131484133/kikum-romolifujivowob-duzijuka.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/1/0436/1669/8526/files/jotoniba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2639/8888/files/perimeter_and_area_of_a_square_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/2903/5158/files/hydrogen_mod_menu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/fiwuloz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/79469004333.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/62547211950.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2610/2947/files/76437919409.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/5956/0094/files/75169487025.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0087/9510/files/34886983434.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0527/0427/files/cambridge_synonyms_and_antonyms_dictionary.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6617/1296/files/cours_de_franais_grammaire._orthographe._dictes._corrigs.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4800/0927/files/bezavekotosiluv.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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