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 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://chcial.ru/uplcv?utm_term=bahubali+2+the+conclusion+full+movie+free+download PDF link annotation

  • http://malifer.hu/upload/file/bavutelanola.pdfIn PDF document text
  • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/0416mc8ge2n20hf3uqem1h7af5/fowunevogosu.pdfIn PDF document text
  • https://terlickodds.cz/www/www/fckphotos/file/63342958181.pdfIn PDF document text
  • https://tekstilkentrehber.com/upload/ckfinder/files/47272984392.pdfIn PDF document text
  • http://boathousebrokerage.com/userfiles/file/57422096758.pdfIn PDF document text
  • https://detmers-kontejner.hr/files/42179813632.pdfIn PDF document text
  • http://k-yoga.org/file_upload/spaw_upload/file/20210516123626.pdfIn PDF document text
  • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f9ff4a909a---tekunileka.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/16088382b7f267---30347860019.pdfIn PDF document text
  • http://parkhigh65.com/clients/4970/File/96307530241.pdfIn PDF document text
  • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb1c8d42f6---bikemepolesawuxi.pdfIn PDF document text
  • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/665b5066f1147f8fc65e32d471c28ef0/dasibewojurosisedi.pdfIn PDF document text
  • https://ms02bet.net/contents//files/96797632430.pdfIn PDF document text
  • http://tipkeo.com/js/ckfinder/userfiles/files/tapub.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/3spgam02dp9c53bm7hg65dbn31/rizusodudajuzuri.pdfIn PDF document text
  • https://nadamasristorante.it/file/kewavonixeponagiki.pdfIn PDF document text
  • https://shriayurvednagpur.org/public/ckfinder/userfiles/files/vidowofamas.pdfIn PDF document text
  • http://orhs89reunion.com/clients/77823/File/lazivekewifu.pdfIn PDF document text
  • http://seyrimerdin.com/userfiles/file/pojoza.pdfIn PDF document text
  • https://cesiedizioni.com/userfiles/file/2708887525.pdfIn PDF document text
  • https://kimtuong.vn/isc/public/files/fckupload/file/66181078557.pdfIn PDF document text
  • http://ibiforstarlight.org/clients/3/3c/3cfcca4e360ca8807b7dd7d6e7cbeae0/File/69946662121.pdfIn PDF document text
  • http://krevue.cz/UserFiles/File/25361142901.pdfIn PDF document text
  • https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4ac9279f6---22682340647.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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