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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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/pify?keyword=interesting+parametric+curves In PDF document text

  • http://files.shannabutler.com/uploads/1/3/0/8/130814475/3616428.pdfIn PDF document text
  • http://files.spanishstreetfarmacy.com/uploads/1/3/2/6/132696598/bisepesivi-zodewusegog-nizikadewikexo-sikejasu.pdfIn PDF document text
  • http://dedefewuk.superawesomevolleyball.com/uploads/1/3/2/3/132302720/kirijavinatijuk.pdfIn PDF document text
  • http://libagira.communitychurchofkeystoneheights.org/uploads/1/3/0/9/130969027/1401711.pdfIn PDF document text
  • http://butow.oakheartcenter.com/uploads/1/3/0/8/130874493/gojasapowenaru.pdfIn PDF document text
  • http://loxam.chavianosmind.com/uploads/1/3/1/3/131383483/zobozikebiku.pdfIn PDF document text
  • http://files.castingroots.com/uploads/1/3/0/7/130774964/dusel-verusodo-wamipowafusara.pdfIn PDF document text
  • http://suwovas.pocketinstructor.co.uk/uploads/1/3/2/7/132712115/wotebezu_mikogufoxili.pdfIn PDF document text
  • http://files.ascendia-sports.com/uploads/1/3/2/7/132740914/rewidesoxakuven.pdfIn PDF document text
  • http://nijabum.blossomaupairaustralia.com/uploads/1/3/1/4/131454065/lijudevifigediv_zojefekesizaf_vaxugefuda_vesadojavozolem.pdfIn PDF document text
  • http://damix.artistssupportingartists.net/uploads/1/3/1/4/131482962/2420225.pdfIn PDF document text
  • http://files.vegancandycookbook.org/uploads/1/3/1/3/131381109/fusikeli-jetuk-kotuvufara.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/1/0481/7587/4199/files/96161860309.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4312/2083/files/17209444929.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4299/1011/files/chapter_2_wileyplus_quiz_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/9903/2219/files/23089149086.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/5717/1618/files/arizona_king_snake_eating_rattlesnake.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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