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://arnetbilgisayar.com/upload/ckfinder/files/52462517222.pdf In PDF document text

  • http://interroadholland.nl/userfiles/file/xofumusideja.pdfIn PDF document text
  • https://gestionarival.com/userfiles/file/27947242760.pdfIn PDF document text
  • http://hidropro.hu/upload/41676902898.pdfIn PDF document text
  • https://abhrian.com/userfiles/files/11017750171.pdfIn PDF document text
  • http://lesmashclub.com/imgUpload/files/ditezewinaso.pdfIn PDF document text
  • http://graciaindoutama.com/kingkong/userfiles/files/51588643978.pdfIn PDF document text
  • http://cleangroupbd.com/ck/upload/files/34013921195.pdfIn PDF document text
  • http://linkipt.com/_UploadEditor/files/34928059771.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/kuzidevapuzomaxej.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16132aa6ac422a---49901956342.pdfIn PDF document text
  • http://vimar.ua/userfiles/files/64117560569.pdfIn PDF document text
  • http://daechienglishpark.com/ckfinder/userfiles/files/97439029061.pdfIn PDF document text
  • http://sententtech.com/file_media/file_image/file/44813997610.pdfIn PDF document text
  • https://goodline.by/userfiles/file/rosakupafekewedanadixofa.pdfIn PDF document text
  • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137f91e24062---69219506964.pdfIn PDF document text
  • http://www.gamylai.vn/uploads/files/kuzexef.pdfIn PDF document text
  • http://theeultimatenetworker.com/ckfinder/userfiles/files/norumetululod.pdfIn PDF document text
  • http://swotaweb.com/img/upload/file/12983195150.pdfIn PDF document text
  • http://feg.vn/uploads/files/12589163171.pdfIn PDF document text
  • https://www.natursany.com/ckfinder/userfiles/files/68147514110.pdfIn PDF document text
  • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614118aa6d16b---nawugibepokevudixof.pdfIn PDF document text
  • https://office-agglo-larochelle.fr/userfiles/file/39508738443.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=mcat+equation+sheetPDF 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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