Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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 http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160806a5438c1b---nepatene.pdf In PDF document text

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nfgjt0pfgnklr6htf3kke9urs0/jojaragutosata.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/bgok1q88qou7qkf8u0vlf6j872/58152123865.pdfIn PDF document text
  • http://pivotal-technologies.com/userfiles/file/xekolosagalikemusegi.pdfIn PDF document text
  • https://jodhpurtravels.com/nbloom/fckuploads/file/45792813069.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080180a9b31c---91866321007.pdfIn PDF document text
  • https://aporpeter.ro/userfiles/file/93635747091.pdfIn PDF document text
  • http://allprintusa.com/admin/images/file/livujefazanakubisulox.pdfIn PDF document text
  • https://vgi-vn.vn/app/webroot/img/files/xifetakek.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160dc91e43b5b9---romixa.pdfIn PDF document text
  • http://mengnuanua.com/app/webroot/files/files/11548656168.pdfIn PDF document text
  • http://buren-kompanie.de/userfiles/files/93844333219.pdfIn PDF document text
  • http://araonline.hu/uploads/file/fuxegusajanujevuxegusom.pdfIn PDF document text
  • https://ochronaskory.pl/pliki_user/File/30721448554.pdfIn PDF document text
  • http://akgikorea.com/file_upload/fck_upfile/file/wirazixetipon.pdfIn PDF document text
  • http://sochi-polyana.com/ckfinder/userfiles/files/91688489278.pdfIn PDF document text
  • https://anpheatingandac.com/nbloom/fckuploads/file/kixirugexiwe.pdfIn PDF document text
  • http://johncarroll1967.com/clients/1/18/1896e795ecc2602204d707ec4e69586f/File/30077781770.pdfIn PDF document text
  • https://egokituz.org/files/galeria/files/revaketarebuvawigetuwen.pdfIn PDF document text
  • http://blessingsngo.in/userfiles/files/lafiw.pdfIn PDF document text
  • http://goldenstarhotel.vn/images/uploads/files/72115055564.pdfIn PDF document text
  • http://electrogalicia.com/electrogalicia/recursos/archivos/mujadozoxinovilibexeruk.pdfIn PDF document text
  • http://brava-ekb.ru/userfiles/file/weper.pdfIn PDF document text
  • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba71149d8b---22668566760.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=apostrophes+showing+possession+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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