Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://archism.ru/uplcv?utm_term=modded+apps+download PDF link annotation

  • https://torbay.ru/images/uploads/file/nejuwuw.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/835b4707c72efecebf99ba482dbe8307/49458440194.pdfIn PDF document text
  • http://fecirturizm.com/resimler/files/68333161017.pdfIn PDF document text
  • https://tonthephunglan.vn/upload/files/43417319844.pdfIn PDF document text
  • http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/14615239507.pdfIn PDF document text
  • http://aallergy.friend-match.com/upload/files/32617438801.pdfIn PDF document text
  • http://snft.ro/media/file/biregexiluzif.pdfIn PDF document text
  • https://flyags.com/editorResources/file///kuwok.pdfIn PDF document text
  • http://teleinwestor.com/userfiles/file/21986377248.pdfIn PDF document text
  • http://thietbidienmpe.net/upload/files/meroxevegibise.pdfIn PDF document text
  • http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/47395083137.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356559a024d---88008790955.pdfIn PDF document text
  • http://toonesk.com/upload/44524942122.pdfIn PDF document text
  • http://highlevel.pl/userfiles/file/75277201958.pdfIn PDF document text
  • https://gonguyenkhoi.vn/upload/files/45229763393.pdfIn PDF document text
  • http://abcgsgeds.friendship-match.com/upload/files/36897538334.pdfIn PDF document text
  • http://apart1day.ru/file/xozurapi.pdfIn PDF document text
  • http://countryclaim.cz/userfiles/file/penasubomokunugubipigasu.pdfIn PDF document text
  • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/161351e405dead---38221169533.pdfIn PDF document text
  • http://lonerangerfanclub.com/ckfinder/userfiles/files/52726073210.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613a280d7d887---rawifomikiw.pdfIn PDF document text
  • https://mma-montessori.com/admin/ckfinder/userfiles/files/sidulibolevakoguda.pdfIn PDF document text
  • http://architetturaurbanistica.it/userfiles/files/25349014391.pdfIn PDF document text
  • https://suativisamsungtaihanoi.net/upload/files/labiburexug.pdfIn PDF document text
  • http://studiozammuner.eu/userfiles/files/34467841726.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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