Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://plasy.com/uploads/file/92865510827.pdf In PDF document text

  • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/0d2e48417de643c7ddd780a08a889167/87113228398.pdfIn PDF document text
  • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072efd9ac199---77533249145.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/43610961153.pdfIn PDF document text
  • http://turnwealthy.com/ckfinder/userfiles/files/20254975137.pdfIn PDF document text
  • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/cae5e1b016aeba9a6dbf520291e82d4f/rowekokedulerixekopovine.pdfIn PDF document text
  • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/3ece01b09d6029b46e0d0a7fb38c77fe/zumekidejifesumosojap.pdfIn PDF document text
  • http://internationalnetworksolutions.net/files/In PDF document text
  • http://provia-events.de/pics/fotos/1/file/gozikarudizona.pdfIn PDF document text
  • https://gelblighting.com/userfiles/files/doramikowiwaje.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5a4d1989d---bitanuje.pdfIn PDF document text
  • https://stradatextiles.com/upload/ckfinder/files/60682699005.pdfIn PDF document text
  • http://alanurturizm.com/rsm/files/23964869046.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1fec794c74---jafevanasuj.pdfIn PDF document text
  • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/98bo4fdlreim6ild96e3lkh0at/91726717587.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/34b8148fd13282b42ed66d736f9d22dc/zipuradegavasitigu.pdfIn PDF document text
  • http://isagenixmakessense.com/ckfinder/userfiles/files/15793943330.pdfIn PDF document text
  • http://mutamobilya.com/images_upload/files/22621327968.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/4005147842.pdfIn PDF document text
  • http://qiuyutv.com/userfiles/files/20210803105516.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609517b3f0382---7994062476.pdfIn PDF document text
  • http://iccarrentals.com/files/file/1753838057.pdfIn PDF document text
  • http://hgbs.de/userfiles/file/79024708813.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607819ea37b5a---lovuxig.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=reading+comprehension+exercises+3rd+grade+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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