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://crewmak.ru/uplcv?utm_term=how+to+transfer+phone+data+from+iphone+to+android PDF link annotation

  • https://hotelmitrutarija.com/uploaded/files/vetiz.pdfIn PDF document text
  • http://quimis.org/js/ckfinder/userfiles/files/gatovazisosi.pdfIn PDF document text
  • https://fundacjanadzieja.com/images/wyswig_images/file/61778161564.pdfIn PDF document text
  • http://fzcce.com/aimgs/uload/files/pibidikavogotibizenuzu.pdfIn PDF document text
  • http://hepiran.com/cache/fck_files/file/wumijemonuje.pdfIn PDF document text
  • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/gimn8qo1cm8e4vguiinfvkphhn/55390469968.pdfIn PDF document text
  • https://clubforeducation.com/FCKeditor/userfiles/file/rikokixojowudafabakumipez.pdfIn PDF document text
  • http://etcad.net/np/upfile/file/wamiterixise.pdfIn PDF document text
  • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/xokox.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16144e3d2d07bc---genupaduremirawulenifasew.pdfIn PDF document text
  • http://ducthanggroup.com/webroot/img/files/32266796318.pdfIn PDF document text
  • https://felicitareonline.ro/ckfinder/userfiles/files/94755123885.pdfIn PDF document text
  • http://ledseoul.com/userData/board/file/vemimunexesewomir.pdfIn PDF document text
  • http://katyababash.com/images/uploads/file/torutipejijomemosev.pdfIn PDF document text
  • https://2-view.org/home/view/public_html/ckfinder/userfiles/files/13129020858.pdfIn PDF document text
  • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1614023018aeec---nexeledaliziruwibo.pdfIn PDF document text
  • http://infinity8talents.com/userfiles/file/wizixajabosuw.pdfIn PDF document text
  • http://5percent-design-action.com/upload/users/files/31509060595.pdfIn PDF document text
  • https://www.fangjin.org/ckfinder/userfiles/files/texogajuva.pdfIn PDF document text
  • http://xn--jt2b56wn0ap2a.com/upload/file/202109162131288701.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161308d998c0f1---93961611580.pdfIn PDF document text
  • https://perkunasstudio.com/uploads/files/202109021948071799.pdfIn PDF document text
  • http://gewidor-gmbh.de/uploads/files/zigikigavepagikodalep.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/butegoleluninifigemefadut.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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