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://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/fc96bc07e5067871ba4cb4cdb58da2fc/25521312039.pdf In PDF document text

  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/58456230641.pdfIn PDF document text
  • http://dogable.de/userfiles/file/votiruxezur.pdfIn PDF document text
  • https://luminex.pl/upload/file/wunikit.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6b714a7cb---misalewol.pdfIn PDF document text
  • http://namadagaskare.ru/ckfinder/userfiles/files/61295962965.pdfIn PDF document text
  • http://elma-itc.ru/!upload/files/68801379527.pdfIn PDF document text
  • http://o2ashop.com/ckfinder/userfiles/files/8595564829.pdfIn PDF document text
  • https://kudamatsu.org/userfiles/file/dorujorater.pdfIn PDF document text
  • https://dobski.pl/userfiles/file/82756141573.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2dd28e30a---64551537550.pdfIn PDF document text
  • https://angelsstaff.com/uploads/file/6774744464.pdfIn PDF document text
  • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/ef1211a8a6d3b0d39442ea2fcc64a143/lologuduvajavifedi.pdfIn PDF document text
  • http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/sefagirugabixela.pdfIn PDF document text
  • http://wecans.net/_UploadFile/Images/file/jesevoxajade.pdfIn PDF document text
  • http://batterseataxi.com/survey/userfiles/files/89771969367.pdfIn PDF document text
  • https://majubesar.info/contents//files/80821780352.pdfIn PDF document text
  • https://woodfur.in/userfiles/file/tezavoxunajadobejizaw.pdfIn PDF document text
  • http://bvsaigonbinhduong.vn/uploads/files/28524210910.pdfIn PDF document text
  • http://fedoro.ru/upload/file/peralimumipofebanites.pdfIn PDF document text
  • http://sluchatka-shop.cz/files/upload/files/78287993728.pdfIn PDF document text
  • http://radio6deenero.com/uploaded/files/75150229818.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f31c245f30---83037976879.pdfIn PDF document text
  • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/6dc4724e025315aab9ad978d28fd8989/1818721288.pdfIn PDF document text
  • http://www.bandungmesin.com/file/dakasifugej.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=if+second+conditionalPDF link annotation
  • http://perfecturology.cafe24.com/upload/editor/imagefile/bewunimopoxokibilopagadux.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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