Malicious PDF — malware analysis report

Heuristics 7

• 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.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://bodymart.in/ckfinder/userfiles/files/xibijob.pdf In PDF document text

  • https://cometsecurity.in/admin/userfiles/file/71842281577.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613140d869e2a---webafibu.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360192523d5---78370029361.pdfIn PDF document text
  • http://nagakuratrading.com/js/upload/files/16062608895.pdfIn PDF document text
  • http://thenext.pk/userfiles/files/ganoniwodozodubekivow.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/87186305453.pdfIn PDF document text
  • http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/50815380313.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/nusefezakavibaxe.pdfIn PDF document text
  • http://artikos.pl/userfiles/file/vularekexulusomunaruzag.pdfIn PDF document text
  • http://zzweien.com/d/files/vefigozojapulumofar.pdfIn PDF document text
  • https://lajovisena.com/gallery/file/vupinaremoluse.pdfIn PDF document text
  • https://gmnavarra.es/ckeditor/files/kebemuwuvale.pdfIn PDF document text
  • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/7557e52d03c97103b7a3b82d04b11464/95582807271.pdfIn PDF document text
  • http://praconsulgroup.ru/pict/file/tedalokovogubafajimisu.pdfIn PDF document text
  • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/fc5c566cbcf9362be11af67647468e68/viperononim.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/joditesukaganadoxexiguni.pdfIn PDF document text
  • http://hajnysport.cz/FCK_userfiles/file/43083632760.pdfIn PDF document text
  • https://norservis.com/files/files/duvogubipikisaponujediv.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613944bb4fa39---tibas.pdfIn PDF document text
  • http://cukiernia.eu/upload/files/niteku.pdfIn PDF document text
  • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/qepni0sr8kevqfq598jbglhm38/24206223170.pdfIn PDF document text
  • http://german-ex.com/images/blog/file/89138087389.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=apk+fun+run+3PDF link annotation
  • 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

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