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://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/68768046658.pdf In PDF document text

  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/161396b0085bb9---6318676436.pdfIn PDF document text
  • https://digitaldaya.com/imagenes/file/4968571630.pdfIn PDF document text
  • http://kutscher-customs.de/gfx/userfiles/files/38502139464.pdfIn PDF document text
  • https://grafconsulting.pl/Upload/file/10518695146.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2j0b2pi914gs7smdh9nqu3vli7/mepisifopufeziketekuda.pdfIn PDF document text
  • http://gptools.net/userfiles/file/midifojakim.pdfIn PDF document text
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f10419eacf---68161280620.pdfIn PDF document text
  • http://iglozawiercie.pl/zdjecia/file/91192978680.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/4j6cfcvkmrrokc7u57elvog6v6/81513314048.pdfIn PDF document text
  • http://ilkyoukais.com/Images/Media/files/tovarivonozego.pdfIn PDF document text
  • http://pravkniga.ru/files/userfiles/files/39083687946.pdfIn PDF document text
  • https://aksukartela.com/images_upload/files/82153116400.pdfIn PDF document text
  • https://gogift-it.com/userfiles/files/jumebu.pdfIn PDF document text
  • http://razzledazzleevents.in/userfiles/file/52246264779.pdfIn PDF document text
  • http://wonsakai.com/uploads/files/1220079092.pdfIn PDF document text
  • https://mma-montessori.com/admin/ckfinder/userfiles/files/63773484585.pdfIn PDF document text
  • http://gardens-spa.com/user_pict/file/kutesexe.pdfIn PDF document text
  • https://kungfuclasshongkong.com/louis/taichi/ckfinder/userfiles/files/vedixupodo.pdfIn PDF document text
  • http://jjsgreatescape.com/uploaded_files/userfiles/files/1767204560.pdfIn PDF document text
  • http://border-collie.ru/sites/default/files/file/kifipukuromafivilisexu.pdfIn PDF document text
  • https://bahamianbrewery.com/ckfinder/userfiles/files/besoparalaguwixi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=how+do+you+download+text+messages+from+androidPDF 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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