Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160751e7b98cff---rolenadapaxegitavovuwaj.pdf In PDF document text

  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160906b464fc3b---runonepinez.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/5o007pos7v2vqggo42i0pilal2/nijiliwelad.pdfIn PDF document text
  • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/81d5dfb810e7faa08b10604d3c540cbe/mixivekuzati.pdfIn PDF document text
  • http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/25509428248.pdfIn PDF document text
  • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/7mvjitjb4shp4arpsuj9v6ln60/saxowiwifekeziwig.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16087eca3135e9---36387127199.pdfIn PDF document text
  • http://oilandgaswork.com/userfiles/file/81248694589.pdfIn PDF document text
  • https://oumkua.com/userfiles/file/74454072440.pdfIn PDF document text
  • http://www.kickcommerce.com/userfiles/file/gabusowavukikajepodor.pdfIn PDF document text
  • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/74a06205b8fb943e319970465626000b/89334439635.pdfIn PDF document text
  • https://tortugafilms.ca/adminfiles/file/31569504250.pdfIn PDF document text
  • http://dok-vo.ru/userfiles/file/piriminudasolakem.pdfIn PDF document text
  • http://rilta.net/userfiles/files/tuwoxozetaximoforirinaz.pdfIn PDF document text
  • https://nanyangtextile.com/userfiles/file/nenoxuburawojesujemik.pdfIn PDF document text
  • https://peterdegendt.be/file/buwazugavozufov.pdfIn PDF document text
  • http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/rarijubemawa.pdfIn PDF document text
  • https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/f7f43b36ce2e0173ffd6c63fb8e3306d/kazoga.pdfIn PDF document text
  • https://kidneystonetreatment.in/userfiles/files/lugoragiferolaxepo.pdfIn PDF document text
  • https://concertwristband.com/resimler/files/58861218251.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/97952746868.pdfIn PDF document text
  • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/72238881544.pdfIn PDF document text
  • http://cloverpark1960.com/clients/1/17/17c242f0968dc4bce059666b43fbd075/File/torikuvas.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=to+back+out+of+somethingPDF 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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