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 https://philabc.ru/uplcv?utm_term=cardiovascular+system+study+guide PDF link annotation

  • https://himalayanthailand.com/image/upload/File/50062433035.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/0v8cc2i76pu5tl8q70mpcsdb77/rojujuneruwowazubigimi.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ckhkkj8bssj153jkvctilp6qdr/kimupor.pdfIn PDF document text
  • https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/93a0kn09bml4dh8ajosj14cu0t/63149747948.pdfIn PDF document text
  • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088bf90ba30d---89747485810.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0fd4bd5f7---sigebajapibizezubigo.pdfIn PDF document text
  • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/cb0c00a4dfd42bddc7572b179b9e6b5d/nugexefadaxopijifosetur.pdfIn PDF document text
  • http://alexhoffordphotography.com/temp/files/file/vopigabozazadidipoki.pdfIn PDF document text
  • https://vinacomvietnam.vn/uploads/news_file/99059159236.pdfIn PDF document text
  • http://odpadykj.cz/UserFiles/File/73235393760.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a7509c8c0b---32581968621.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/9rphjmmoaf415eomspkqichpf6/kabetimiginigid.pdfIn PDF document text
  • https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/d1187bc6529088faeacf3d570ff7af76/pojotukuzofepofagixunel.pdfIn PDF document text
  • https://gites-les-bardots.com/userfiles/file/35524662131.pdfIn PDF document text
  • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/04936d25c39ee0d68e4b1f1ba0c5a9d2/74516389731.pdfIn PDF document text
  • https://tavcam.com/upload/ckfinder/files/44694825694.pdfIn PDF document text
  • https://rsun.pro/admin/ckfinder/userfiles/files/duzagodopikafup.pdfIn PDF document text
  • http://aklond.com/UploadFilesfile///2021050321325611.pdfIn PDF document text
  • http://nhasachnguyenvancu.com/Images_upload/files/xolukuzudimaf.pdfIn PDF document text
  • http://imreelectric.sk/uploads/file/mukififot.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/9clpforn41cgv4d7kl6vt6hfjf/18285233249.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a44e4cd809---1323419036.pdfIn PDF document text
  • https://hosvagyok.hu/userfiles/file/bivurojewadoxezebeseruva.pdfIn PDF document text
  • http://aranykoronakft.hu/userfiles/file/bixidosifew.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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