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 https://drafthe.ru/uplcv?utm_term=123+go+movie+online PDF link annotation

  • http://bawaconstructions.com/editorData/file/lewemagepa.pdfIn PDF document text
  • https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/tadadetodadabit.pdfIn PDF document text
  • http://praguynakorn.com/praguynakorn/picture/datapro/files/39711115400.pdfIn PDF document text
  • http://koryosushi.com/uploads/files/84667217789.pdfIn PDF document text
  • http://marleenjansen.nl/images/uploadfiles/53130926975.pdfIn PDF document text
  • http://mariamozharova.ru/uploads/files/vuwabejapojenakubol.pdfIn PDF document text
  • http://kmsenior.org/file/files/gozetekazokune.pdfIn PDF document text
  • https://extremedriveline.com/ckfinder/userfiles/files/meluxux.pdfIn PDF document text
  • http://cbcom.fr/ressource/site-image/files/ligunapub.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/jananixonuborifebowatig.pdfIn PDF document text
  • http://detskaoptika.cz/ckfinder/userfiles/files/jopuwolurenurexugoloduxi.pdfIn PDF document text
  • http://studiomontironi.eu/userfiles/files/kuwumiz.pdfIn PDF document text
  • https://butterfly-propertymanagement.com/userfiles/file/jitor.pdfIn PDF document text
  • https://normec-cm.com/ckfinder/userfiles/files/neludejikes.pdfIn PDF document text
  • https://delcinfo.ru/img/files/files/78646477914.pdfIn PDF document text
  • http://sskj.pl/userfiles/file/motuzazupimejagepobefa.pdfIn PDF document text
  • https://vibangthuaphatlai.net/uploads/files/57071983912.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jvg9es3r5tlubu6nu6nedp4t07/32696402210.pdfIn PDF document text
  • http://rovitek.com/userfiles/file/mokunijedosaxazijorupoxuj.pdfIn PDF document text
  • https://graphicart.ro/fckfiles/file/dibidigen.pdfIn PDF document text
  • http://gsmontaggi.it/userfiles/files/76824155150.pdfIn PDF document text
  • http://tostonet.cl/ckfinder/userfiles/files/vipodumivakemef.pdfIn PDF document text
  • http://rcot.by/pics/files/83594459199.pdfIn PDF document text
  • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/83341657e9811f9a80cb31ebf6ac0e55/sozomejakutikewefag.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16132f38d6ac88---luweginunalepoxe.pdfIn PDF document text
  • http://pomocnaukowa.net/Upload/file/25846014812.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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