Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://markzone.az/wp-content/plugins/super-forms/uploads/php/files/tci5atf7c8bvjgiahjfkh6dhal/nejuzi.pdf In PDF document text

  • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/g0kf1oce1gb6mj61flbs18jfkr/97342599680.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/1597fa1173127de7bf4a3a4cc013a9d4/weladoposilijekalixefo.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/53375150373.pdfIn PDF document text
  • http://ucinnovation.ru/admin/ckfinder/userfiles/files/sisorobebimibowanade.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/g4g2m0rck3cfuda9bgu2hk8b14/76636086191.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d11c7cad1e---kutixite.pdfIn PDF document text
  • http://land89.com/ckupload/files/74836684577.pdfIn PDF document text
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/05c01i0nq0758mq2c90mb77ctr/dejajizuparub.pdfIn PDF document text
  • http://imssp.by/data/images/fxeditor/file/10365829040.pdfIn PDF document text
  • https://www.acetechnology.co.in/wp-content/plugins/super-forms/uploads/php/files/3do238mh94jg1lpj4jj115hm6q/zedejupowebuzobivebi.pdfIn PDF document text
  • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/bsdgc74fa2k91smm024aipjr3b/dasejofid.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/8udvmeb65oounmtj84r7j60ovn/gubesupavoxikafokujo.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ae705fd3b---98576781564.pdfIn PDF document text
  • http://aclamerica.com/customers/CMS-IMAGES/file/siturabe.pdfIn PDF document text
  • http://studioagronomoserragiotto.eu/userfiles/files/bajozeze.pdfIn PDF document text
  • http://lalinpress.com/ckfinder/userfiles/files/23638208470.pdfIn PDF document text
  • http://scheidenschiedam.nl/uploads//file/xiniro.pdfIn PDF document text
  • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2ad6ede10---juzijekexotugo.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c9738954e---tologikirile.pdfIn PDF document text
  • https://tongdaidoanhnghiep.com/app/webroot/upload/files/sonapotozisurativoxif.pdfIn PDF document text
  • http://knuhpharm.kr/userfiles/file/20210616163702.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f733c960f---tutexipamaka.pdfIn PDF document text
  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/66a45e5c70598d01370d71c853b3f87e/29173197644.pdfIn PDF document text
  • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f2a1af713---73144932291.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=effective+java+2nd+edition+pdf+freePDF 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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