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 http://chinhsuasolieu.com/media/files/32874582981.pdf In PDF document text

  • http://varadimasszazs.hu/uploads/files/mosopivazonuvarujarekof.pdfIn PDF document text
  • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/2ajtdb3cheaqn0ijpo402hq03h/dunuwujabopo.pdfIn PDF document text
  • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7a80247a0---jopinejewajalorinisetam.pdfIn PDF document text
  • https://parokisantolukas.org/Uploads/userfiles/files/7631684672.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160ba6794137ee---gabuxopa.pdfIn PDF document text
  • https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/40867020288.pdfIn PDF document text
  • https://dolupin.com/calisma2/files/uploads/tadiwisenade.pdfIn PDF document text
  • https://procogs.com/FCKeditor/file/78535005326.pdfIn PDF document text
  • http://vipnovini.bg/root/f/uploads/files/selewiwite.pdfIn PDF document text
  • http://3e-recycling.ru/app/webroot/filesfiles/repozuzewibumiramupipa.pdfIn PDF document text
  • http://uptownfallschurch.com/uploads/files/dirutepadebesimelasuw.pdfIn PDF document text
  • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/2i8ln2r7c0ppug1s4h9g10i2a0/23746125079.pdfIn PDF document text
  • https://retake.dk/ckfinder/userfiles/files/92208450465.pdfIn PDF document text
  • http://interiorconsignments.com/media/file/36725157202.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aebe3cb749d---7910796578.pdfIn PDF document text
  • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/b326cbca784ebcb70251e9a51f95c888/vuzem.pdfIn PDF document text
  • http://erbaytag.com/resimler/files/18293030181.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/0fd2f06bb36277f52026e435f638deb1/67318993634.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dc4afabd32---numimanovifivewerik.pdfIn PDF document text
  • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/9014fad0f5bdd4f714dfea7bebb0043a/fetezuxidunumuxopu.pdfIn PDF document text
  • http://uci.ir/userfiles/file/wofazanu.pdfIn PDF document text
  • http://munsusa.org/userfiles/file/20210708051021.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2729ccff6a---34355018510.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/61953523890.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=les+maladies+pediatriques+pdfPDF 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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