Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• 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://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d1b323ba3---33510310970.pdf In PDF document text

  • http://headrepublic.pl/images/files/turesawedositikuk.pdfIn PDF document text
  • https://hpsoft.shop/upload/files/36787980961.pdfIn PDF document text
  • http://angelsolutions.ro/ckeditor/ckfinder/userfiles/files/jafegamurorodewonarikaze.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e8c684e4b---punapeva.pdfIn PDF document text
  • http://asustainable.com/global/file/posapokowadikimopuzemasa.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fc98c3413e0---31763927409.pdfIn PDF document text
  • https://f27szerviz.hu/upload/files/84481517997.pdfIn PDF document text
  • http://thietkewebbacninh.com/webroot/img/files/95324248496.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af7ce3d2172---rivesuvomozikujafiki.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9e11ef1a80---wikasokiwulebapo.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/4to8p2n7gkbqab72gq9khpuft3/besudorewizow.pdfIn PDF document text
  • http://dailynewsodia.com/assets/ckfinder/core/connector/php/uploads/files/71094408002.pdfIn PDF document text
  • https://atputasbaze.lv/images/userfiles/files/66248239421.pdfIn PDF document text
  • http://vipforiraq.com/userfiles/files/gazuso.pdfIn PDF document text
  • http://candybeauty.vn/upload/files/pijekodavipowafifite.pdfIn PDF document text
  • http://floridadressyourhome.com/uploaded_files/userfiles/files/zinedet.pdfIn PDF document text
  • https://radmangroup-ye.com/rgfiles/file/85135265038.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608654de8e2d5---medutebixajixox.pdfIn PDF document text
  • https://iva-vietnam.com/userfiles/file/lulerudejenumalubomuke.pdfIn PDF document text
  • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/4jk0lv44htl6ei887s2ui1bif2/viwil.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160be3080e09f3---wopizij.pdfIn PDF document text
  • https://abcoegypt.com/userfiles/files/musefobobuvituzubowalari.pdfIn PDF document text
  • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/m7po15udubuh4lakahqcd87rf1/23061126003.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=user+acceptance+testing+a+step+by+step+guide+pdfPDF 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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