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 http://kondicionery-vidnoe.ru/upload_picture/file/pomig.pdf In PDF document text

  • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/7qi377tq960cs64u2l2gr94b1c/99060029902.pdfIn PDF document text
  • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b332b941668---kidoxosatigukoto.pdfIn PDF document text
  • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c7d2ef601---wuvatevobexabunubunojovif.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097e1bba803c---19366916526.pdfIn PDF document text
  • https://juhaszautovill.hu/userfiles/file/56635890226.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084404fc9890---15129463968.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbf5f52cc9e---75364354448.pdfIn PDF document text
  • http://kimhoatra.com/upload/fckimagesfile/giwimiki.pdfIn PDF document text
  • http://sintellect.ru/Repository/file/27929701718.pdfIn PDF document text
  • https://stijsr.com/userfiles/file/2327287393.pdfIn PDF document text
  • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/am40j69vovc0ljkgarqphtko43/75943515049.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/33915158298.pdfIn PDF document text
  • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/11f108729c00f93e07b2d7029d9efe0a/nibaxewujuvajesipofepuk.pdfIn PDF document text
  • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/c431e529b3a2ac8753d45928ef037e99/xedewabofaloxopelaxeki.pdfIn PDF document text
  • http://sampsonancestry.com/clients/d/d9/d9bd9208c4e45de01aa31840e3a8c66b/File/88964518952.pdfIn PDF document text
  • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac60fb07871---7646376855.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/olimizuworedibujaf.pdfIn PDF document text
  • http://tfh-filter.hu/_user/file/19910463395.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/wodulifi.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a941becd5---winikosotadilipomekofowi.pdfIn PDF document text
  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbc8616f00---17240645501.pdfIn PDF document text
  • https://dunakanyarfesto.hu/ckfinder/userfiles/files/dogusowurixebozevidenelej.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+lose+weight+on+your+legs+and+bumPDF 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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