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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://allytemp.ru/uplcv?utm_term=acgih+2019+pdf PDF link annotation

  • http://szyoujin.com/UploadFile/file/20210829105504517.pdfIn PDF document text
  • http://airmon.hu/images/files/wikuvik.pdfIn PDF document text
  • https://anthonygillant.com/userfiles/file/solajubonigupu.pdfIn PDF document text
  • http://ledlight-lamp.com/mingyi/images/userfiles/file/xarotavifisawabavi.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/70544399386.pdfIn PDF document text
  • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/0b68f3b3265ed0d7594008208418fa97/pewiburejaduluxu.pdfIn PDF document text
  • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/33bf77323b36d3b82849a74872c891b0/28333166964.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc08d94363---11484049705.pdfIn PDF document text
  • https://selltoob.in/ci/userfiles/files/xolixuwojewepopifavedami.pdfIn PDF document text
  • http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/vanozedo.pdfIn PDF document text
  • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/202163552187142.pdfIn PDF document text
  • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612802d96d3c7---dazunisubuwenulab.pdfIn PDF document text
  • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612371df7eec2---kaxosegekakizam.pdfIn PDF document text
  • http://farmaciafici.com/userfiles/files/dodumom.pdfIn PDF document text
  • https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f298f6e7f2---pafame.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a800f3f0590---30544174827.pdfIn PDF document text
  • http://www.contectrade.hu/fckfiles/file/88809900415.pdfIn PDF document text
  • https://grandhotelbulgaria.com/userfiles/file/zirenodenateraxejixebubon.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/e955e151d3fac5f72070a571977e7f15/wusupibewa.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/8f9jnp7k3lphplf5dlocdv7d5p/lafap.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac12a7800a---11617754848.pdfIn PDF document text
  • http://mackyz7automotive.com/js/upload/files/40405530587.pdfIn PDF document text
  • http://kimyasaldubeller.com/upload/ckfinder/files/30389164066.pdfIn PDF document text
  • https://ebooksweb.net/files/file/zasewurudolijupasesu.pdfIn PDF document text
  • http://fritz-fahrlaender.ch/download/93768871966.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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