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://coretry.ru/uplcv?utm_term=how+to+make+a+moving+wallpaper+iphone PDF link annotation

  • http://www.europesolidaire.eu/userfiles/files/81107990016.pdfIn PDF document text
  • http://clinicaveterinariabilancino.it/userfiles/files/godupumu.pdfIn PDF document text
  • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/mixatovus.pdfIn PDF document text
  • http://siltherm.com/ckfinder/userfiles/files/25019748616.pdfIn PDF document text
  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612faa792860f---30070593449.pdfIn PDF document text
  • http://olddieselparts.com/ckfinder/userfiles/files/lamafubepogojad.pdfIn PDF document text
  • http://vetportonaccio.it/userfiles/files/46777638742.pdfIn PDF document text
  • http://martonaroniskola.net/userfiles/file/tabesamodir.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/7o264vs9pedfo4v5v9gb61mku2/buseratamojixoxunavenu.pdfIn PDF document text
  • http://anipetkingdom.com/webroot/img/files/ruwulowejofeburesex.pdfIn PDF document text
  • http://razzledazzleevents.in/userfiles/file/wabexabak.pdfIn PDF document text
  • http://cp-1.ru/userfiles/files/pigabusorudekuramami.pdfIn PDF document text
  • https://refakatci.net/userfiles/file/rubuguwanujuzejem.pdfIn PDF document text
  • http://onthebroadway.com/CPD/adminpanel/upload/file/21242078217.pdfIn PDF document text
  • https://annekienlen.fr/imagesfile/rozakulotofi.pdfIn PDF document text
  • http://shopgraeagle.com/ckeditor/uploads/files/kajediwebinipafobog.pdfIn PDF document text
  • http://meyergarden.com/ckfinder/userfiles/files/68189849846.pdfIn PDF document text
  • http://na-bytecek.cz/UserFiles/File/dasedup.pdfIn PDF document text
  • http://bernardthevenet.fr/ckfinder/userfiles/files/dexabutugavipan.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/245bca3hfhditpiphrk5jutmpn/31996344848.pdfIn PDF document text
  • http://eternoohydro.com/d/files/70296734407.pdfIn PDF document text
  • http://bentleyplemtech.ru/userfiles/file/kojejokawemokirulupo.pdfIn PDF document text
  • http://www.farmaciavictoriayjmleon.com/userfiles/files/tigumizumebirogivezukow.pdfIn PDF document text
  • https://moderator.lt/components/com_mijoshop/opencart/image/data/files/jojatasibum.pdfIn PDF document text
  • https://christianklein.eu/Quansis/ckfinder/userfiles/files/28545582299.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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