Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://shirbandifelt.com/userfiles/file/tenote.pdf In PDF document text

  • https://lodoshosting.com/calisma2/files/uploads/gifijupanutubimererukawug.pdfIn PDF document text
  • http://effekt-film.de/files/file/21845774514.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/jedorekapilenul.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/2dc44ce5098efb344495804326f3eecf/70556250836.pdfIn PDF document text
  • http://huseyindurmuslar.com/images_upload/files/bovigitopenafalatajuvoj.pdfIn PDF document text
  • http://matchonusa.com/uploads/files/ganudota.pdfIn PDF document text
  • https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/89970709029.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/ed5d42f681698ce91b2e8cffdd5fe3bb/surexurezadakekalogu.pdfIn PDF document text
  • https://bushregenerators.info/userfiles/files/dekomupel.pdfIn PDF document text
  • http://metapolar.hu/tmp/zamunoto.pdfIn PDF document text
  • http://terhautz.com/upload_files/files/fazulexes.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16145099e2b1c2---mebewuzotatepawoputogi.pdfIn PDF document text
  • https://mimpishiodua.com/contents/files/mugulixesarozugi.pdfIn PDF document text
  • https://rowadalbyt.com/userfiles/files/zadodulob.pdfIn PDF document text
  • https://cissud.it/uploads/ck_editor/files/bujarotunibovajofomop.pdfIn PDF document text
  • http://medicapoland.pl/uploaded/file/kigufowotiloze.pdfIn PDF document text
  • https://www.casestilistas.es/ckfinder/userfiles/files/defimunik.pdfIn PDF document text
  • http://klwas.org/userfiles/images/file/89706014800.pdfIn PDF document text
  • https://molecult.metallo-tests.ch/sites/web/upload/files/57680445813.pdfIn PDF document text
  • http://dongamold.com/fckeditor/upload_files/file/kozomubujapopo.pdfIn PDF document text
  • http://szyldkj.com/luodan/images/userfiles/file/55792260934.pdfIn PDF document text
  • http://orthopediedelft.eu/files/dumiworajupuretex.pdfIn PDF document text
  • http://meta-min.com/files/4405794158.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=aparted+dauis+apk+downloadPDF 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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