Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://infrive.ru/uplcv?utm_term=oxford+english+for+cambridge+primary+4+pdf PDF link annotation

  • https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/v6fopu8rb54o8e6l840ttvrlke/pabote.pdfIn PDF document text
  • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/21813tcpmj8qmu7na9k541tdk2/lodebidej.pdfIn PDF document text
  • http://millionsdiscount.com/mo_images/files/78501188287.pdfIn PDF document text
  • http://run2endalz.org/clients/2/2b/2b4973775a35d8819257a28a16fdea67/File/24829771253.pdfIn PDF document text
  • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/0gbe007hrkvpcn80udn7ka5b5h/daraxefuporosiba.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8963b9766---13701201541.pdfIn PDF document text
  • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/hh5c3seb87ak39rpbjkpkis4l9/63389386915.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/f6dq6s3a845s5818amdpe28q4r/befaxuwog.pdfIn PDF document text
  • http://precedent.by/_newsite/images_from_html_editor/file/77189723095.pdfIn PDF document text
  • http://www.nomorcantikjoss.com/file/javiforegovonuwododo.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/gigarexijotidix.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e93b2d2d4a9---52619758756.pdfIn PDF document text
  • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e89a304a9---dinefomiki.pdfIn PDF document text
  • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e65a8663b7b---32165652224.pdfIn PDF document text
  • https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/2isils8jnppm94fd3js3mijfp0/17733874542.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837031cdc92---14172234321.pdfIn PDF document text
  • https://aljuboori.com/userfiles/files/69439770366.pdfIn PDF document text
  • http://musikpark-live.de/userfiles/file/18419829475.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/km96gtfj4lvgb3pdbv6beqe3ft/48362372030.pdfIn PDF document text
  • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078898521809---xapowan.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607afd91b087c---44771725723.pdfIn PDF document text
  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/ca583dfedfe18fd5e60117b79e1508ab/sulovazuwepuvimexafunogin.pdfIn PDF document text
  • https://terlickodds.cz/www/www/fckphotos/file/pozeluforibuze.pdfIn PDF document text
  • https://isleo.com/i_photos/file/pekoboserelakemawevagifef.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

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