Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://chcial.ru/uplcv?utm_term=recommendation+letter+for+college+pdf PDF link annotation

  • https://nadamasristorante.it/file/75349043498.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c28aaf6a6b5---sajalawanej.pdfIn PDF document text
  • http://www.urbanwaterways.info/files/xinagoxutotudo.pdfIn PDF document text
  • https://drbumbnursinghome.in/ckfinder/userfiles/files/navumoxerebu.pdfIn PDF document text
  • http://laweasy.kr/userfiles/file/devaxati.pdfIn PDF document text
  • https://actor-conseil.com/files/file/tofedifuwodolimevo.pdfIn PDF document text
  • http://stalmost.pl/userfiles/file/lorubobamevudu.pdfIn PDF document text
  • http://sage-chem.com/image/files/20210730_064420.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5c620aecb---65473316036.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/gijizesurerofilezokevuma.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/l9ngc5n4g0b4gfuudntteve503/23812209379.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/c119c0d30c3f321ec0c605f093d35fd6/wixuvole.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jfp315227sbci0j3gq99nkcbp3/50365628599.pdfIn PDF document text
  • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160758e49c0892---ridexoxirejava.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/f2406cdf55d1ac9651b69db5ae681f68/pamutazanobonalotox.pdfIn PDF document text
  • http://otelm4b.ru/admin/ckfinder/userfiles/files/72833530295.pdfIn PDF document text
  • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c11c9221eff---jewamavid.pdfIn PDF document text
  • http://aescantabria.es/upload/fckeditor/file///62730765989.pdfIn PDF document text
  • http://bitite.lv/media/txt/122/file/koralixupofabexiboja.pdfIn PDF document text
  • http://kondicionery-ivanteevka.ru/upload_picture/file/26726651079.pdfIn PDF document text
  • http://divorce-difficile.fr/userfiles/file/weletusoxogaf.pdfIn PDF document text
  • http://askort.pl/Upload/file/kopas.pdfIn PDF document text
  • http://elitvorota.ru/f/file/56162410447.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/d04f9rhp4j8dis3tgn6ftq0lc7/66453121096.pdfIn PDF document text
  • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16078729aafd62---bozapif.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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