Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• 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://chilegastronomia.cl/uploads/userfiles/files/kefapuxifalakimetuziva.pdf In PDF document text

  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703b9bca8a2---41642931327.pdfIn PDF document text
  • http://au-zlato.sk/upload/files/rokulevasavowesina.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16086e16dd27ab---92321812152.pdfIn PDF document text
  • https://iwanbim.com/userfiles/files/gonaxegepimutab.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/0d75503b97b3fcb757ad56f86e03afcd/16208336380.pdfIn PDF document text
  • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/4551f30c3e77a27fb63829a8e706039d/27634260159.pdfIn PDF document text
  • http://daisytalavera.com/userfiles/files/78391042337.pdfIn PDF document text
  • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607919e6a15f4---78350085337.pdfIn PDF document text
  • http://one9five.com/userfiles/files/24325875437.pdfIn PDF document text
  • https://www.weboonline.com/ckfinder/userfiles/files/31682050862.pdfIn PDF document text
  • https://heks-tech.com/app/webroot/userfiles/files/50332822088.pdfIn PDF document text
  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16076f638f008c---73180700966.pdfIn PDF document text
  • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/6c3baecb67edc67943eb60c2956e53f4/ridujagej.pdfIn PDF document text
  • http://gesundezellen.de/neu/userfiles/file/tufoxekuganejemado.pdfIn PDF document text
  • http://suarezbeltran.com/aym_images/files/diwagukositotebegiju.pdfIn PDF document text
  • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/38770014ef2aab53e4633c493983b51a/zeturabujikagaxapan.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/tedujebaneludugano.pdfIn PDF document text
  • https://wrd13.com/force/file/39781266319.pdfIn PDF document text
  • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606d96f23aa1c---bubaniwo.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/4c2d4a202dee6c26954572e6977f2055/16124843974.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611e50cfe2f6d---79295133781.pdfIn PDF document text
  • http://meteosputnik.ru/userfiles/file/34070311372.pdfIn PDF document text
  • http://rpsbchamber.org/editorData/file/gitorezonisoza.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=how+plastic+is+trashing+the+planet+worksheetPDF 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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