Malicious PDF — malware analysis report

Heuristics 6

• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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=albert+camus+the+stranger+pdf In PDF document text

  • http://files.5men104years.com/uploads/1/3/1/4/131483154/9035809.pdfIn PDF document text
  • http://files.bnsathletics.ca/uploads/1/3/1/3/131378899/fakukel.pdfIn PDF document text
  • http://files.braznstudio.com/uploads/1/3/0/9/130969746/2a9c3bc2d6.pdfIn PDF document text
  • http://files.theputterroom.com/uploads/1/3/0/7/130738507/xoxotoveziku-xutope-jinomusarerifup-madaxum.pdfIn PDF document text
  • http://files.koshek.net.ua/uploads/1/3/1/6/131606003/378354f.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/1/0436/1509/2894/files/curl_send_post.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6318/9412/files/thats_my_purse.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1474/0373/files/govemalexez.pdfIn macro / runtime command snippet
  • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/dewej.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/ravijijivi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/4080/6824/files/39871851587.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6750/6841/files/negimikegadusolopule.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8554/4089/files/rogijizukubupulataba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/7966/1736/files/js_force_html_redraw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53446206952.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/femuzamijenoriberupakox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5103/1464/files/49512363041.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
  • https://cdn.shopify.com/s/files/1/0431/63In macro / runtime command snippet
  • 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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