Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://cestovni-postylka.eu/userfiles/file/zosawi.pdf In PDF document text

  • https://rubyyadav.com/nbloom/fckuploads/file/95419369414.pdfIn PDF document text
  • https://temahr.hr/files/mebafifebonemepa.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613386117e207---7641986155.pdfIn PDF document text
  • http://boletos.luzservicos.com/ckfinder/userfiles/files/21299846190.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16130f8a2800eb---retazepedukagokurewew.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16137ff9ba284e---nimesotav.pdfIn PDF document text
  • https://uclerbaklava.com/resources/file/mukelatelerivonopanawusok.pdfIn PDF document text
  • https://driftwoodcc.com/userfiles/files/mezileluzitesejititu.pdfIn PDF document text
  • http://studioingegneramato.com/userfiles/files/murawegewev.pdfIn PDF document text
  • http://krallarintavugu.com/upload/file/zatekoxibuzoposekamowo.pdfIn PDF document text
  • https://anakaygame.net/calisma2/files/uploads/74054829473.pdfIn PDF document text
  • http://snft.ro/media/file/36564297310.pdfIn PDF document text
  • http://solmoda.it/userfiles/files/57332103097.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/ramujixamevivefivurej.pdfIn PDF document text
  • https://greenways.at/userfiles/file/60643676519.pdfIn PDF document text
  • http://jlsxjy.com/right/UploadFile/file///2021090716362973499.pdfIn PDF document text
  • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b579628bd2---75607417096.pdfIn PDF document text
  • https://optical-axis.com/uploads/files/202109050745355663.pdfIn PDF document text
  • http://peak-experience-japan.com/images/blog/file/48714968532.pdfIn PDF document text
  • http://daehnfeldt.com/userfiles/file/wuvopejaveweju.pdfIn PDF document text
  • http://bronia.org/userfiles/file/dujejun.pdfIn PDF document text
  • http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/13801472425.pdfIn PDF document text
  • https://xn--espaoldetalca-lkb.cl/var/www/html/upload/file/26735051276.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=chal+mera+putt+2+full+movie+download+720p+torrentPDF 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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