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://pistant.ru/uplcv?utm_term=camino+al+purgatorio+libro+pdf PDF link annotation

  • http://dorisemitchell.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jowixojukefujufova.pdfIn PDF document text
  • http://101balkon.ru/upload/files/wovenebunitizisur.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/56558283077.pdfIn PDF document text
  • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/m2524sv6lakv1sb7a7regh91r5/79197886055.pdfIn PDF document text
  • http://animationcoach.com/userfiles/file/zobulo.pdfIn PDF document text
  • http://cesishotel.lv/res/wysiwyg/file/lidok.pdfIn PDF document text
  • http://handinks.com/ckfinder/images_store/files/jedujuzut.pdfIn PDF document text
  • http://araonline.hu/uploads/file/56417482818.pdfIn PDF document text
  • https://songiadahoaian.com/upload/ck/files/xebojuzagegu.pdfIn PDF document text
  • http://epoxidice.ro/mm/file/3097132019.pdfIn PDF document text
  • http://askaudit.ru/price/60322119310.pdfIn PDF document text
  • http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/xukuberuvuwekigowizuwagan.pdfIn PDF document text
  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160969c5b6d2d3---lepebirerajo.pdfIn PDF document text
  • http://aaaexpressheating.com/userfiles/file/vutezowe.pdfIn PDF document text
  • http://thanuyentea.com/ckfinder/userfiles/files/guredonel.pdfIn PDF document text
  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/7qvc58b2u80ico5jtd7cl123c5/jitakezujosugorekizava.pdfIn PDF document text
  • http://lasfyy.com/uploadfile/file/20210621234948069.pdfIn PDF document text
  • https://nadrozmerne-sklo.cz/uploads/rotenakiwutenegobumiso.pdfIn PDF document text
  • http://studioprogettoarchitettura.eu/userfiles/files/5129873322.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a04e35ea822---71243509909.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/cm668j5tavn5fjmuvoa9ro2i70/24434091724.pdfIn PDF document text
  • https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/fc4egtsureuctqq50trsp6rlb7/75734305665.pdfIn PDF document text
  • http://sarlampa.ru/upload_picture/majakerobefejis.pdfIn PDF document text
  • https://emprenderem.cl/files/1800993361.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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