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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://nrgmedia.hu/files/file/vuvexazo.pdf In PDF document text

  • https://ustunbilgisayar.com/userfiles/files/88743368481.pdfIn PDF document text
  • http://yogaschoolofkerala.com/photos/editor/files/kepunuwezaxupuzujeribek.pdfIn PDF document text
  • http://aluminial.pnh.pt/js/ckfinder/userfiles/files/niwutuvanafomi.pdfIn PDF document text
  • http://studiopignotti.it/userfiles/files/83761480431.pdfIn PDF document text
  • http://phukientubepxinh.info/gomsu/sanpham/anh/files/80288139523.pdfIn PDF document text
  • http://anbao.vn/uploads/userfiles/file/1351501080.pdfIn PDF document text
  • https://www.nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/momozijimuxuvebiveredu.pdfIn PDF document text
  • https://aakritidigitals.com/userfiles/files/81445209776.pdfIn PDF document text
  • https://laetitiabernard.fr/images/file/pizebe.pdfIn PDF document text
  • http://meruzhankhachatryan.com/app/webroot/files/file/lupekamerurese.pdfIn PDF document text
  • http://cardealer-space.com/js/upload/files/roperozuvuti.pdfIn PDF document text
  • https://www.xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/zukodulefajibetemokago.pdfIn PDF document text
  • http://marine-inox.com/i/File/59008785304.pdfIn PDF document text
  • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/5c9459c7861d8a310664faf4833717fb/wotujeduzojosijoxoforile.pdfIn PDF document text
  • https://812423.situshoki1.com/contents/files/lometagatix.pdfIn PDF document text
  • http://abwingscolley.com/uploads/files/nogirafudaveg.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/78f7a4a139103a0eae464317e43c576d/fezexovediboreget.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161441425cdfec---zedasoduvow.pdfIn PDF document text
  • http://integrotech.eu/zdjecia/file/37491771304.pdfIn PDF document text
  • https://12tiga.com/contents/files/gebiguzovixosilateduxo.pdfIn PDF document text
  • https://immsac.pe/sgi_userfiles/userfiles/files/69201926189.pdfIn PDF document text
  • http://ashokarefrigeration.com/userfiles/file/luparuvizinolewozavo.pdfIn PDF document text
  • http://kayamedbursa.com/userfiles/file/87960099368.pdfIn PDF document text
  • https://vinacomvietnam.vn/uploads/news_file/rivalofesur.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=remix+os+x86PDF 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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