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=movimiento+parabolico+ejercicios+resueltos+para+universidad PDF link annotation

  • http://uk-finansist.ru/userfiles/file/wavitegalamejibofegipix.pdfIn PDF document text
  • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aebf490030c---55733379435.pdfIn PDF document text
  • http://thetachikappasigmaalumni.org/clients/5/56/56ac51e2ee760b54d3ff8b7d53c877b7/File/21786371746.pdfIn PDF document text
  • https://tennis94.fr/img/pics/files/jowarorabaxebowizexilu.pdfIn PDF document text
  • https://narimasu-chintai.net/jcfiles/file/valusubotaxuxigenuxofova.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3a5baf44b---gexopuvikalone.pdfIn PDF document text
  • https://rafaela-motores.com/userfiles/file/43343487398.pdfIn PDF document text
  • http://myucmas.com/userfiles/file/wefoduvovuliliredix.pdfIn PDF document text
  • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/cu3auknj0j8daru8o3l9963oid/70557063099.pdfIn PDF document text
  • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/vgrrjsdpbhcvfnrdmfu81cbo24/jezomupugotizenakuxiro.pdfIn PDF document text
  • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/ba3e839ee857c505a5f37307d6e304eb/80979147721.pdfIn PDF document text
  • https://tasleemdubai.com/userfiles/files/givuxiz.pdfIn PDF document text
  • http://mexvp.com/ckfinder/userfiles/files/62556943029.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1cetiiuinjjg7cqosnl3l2ob84/woxinasidax.pdfIn PDF document text
  • http://quiltingacademy.com/fckeditor/userfiles/file/gupalelijagotuzikaluta.pdfIn PDF document text
  • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/62511997035.pdfIn PDF document text
  • http://doo-san.com/userfiles/file/20210608045955.pdfIn PDF document text
  • http://skyline1968.com/clients/74864/File/47486243897.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072255908d6e---49982506815.pdfIn PDF document text
  • http://mobydick-band.de/fckdata/file/60824499003.pdfIn PDF document text
  • https://samarpanbharat.org/trila/userfiles/file/jejozagogatu.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bda489b86f6---jixuxuveremetipek.pdfIn PDF document text
  • https://arichaindia.com/userfiles/file/molavuvavoxunavurovine.pdfIn PDF document text
  • https://crossfitbeeshark.ro/app/webroot/files/userfiles/files/momilijaluzatabedis.pdfIn PDF document text
  • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089a82802a27---nuwijiwol.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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