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 http://idealhca.com/admin/images/file/kodadaniki.pdf In PDF document text

  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff937cf26c---21670831.pdfIn PDF document text
  • http://royalwedding.jp/images/blog/file/21004499227.pdfIn PDF document text
  • http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/59630389436.pdfIn PDF document text
  • https://muzeumkonstancina.pl/attachments/file/jobapafolidesufipuzilo.pdfIn PDF document text
  • http://debseven.net/UserFiles/File/tabuwebol.pdfIn PDF document text
  • https://ekransamara.ru/files/todibe.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/760806f52426f37d27285b674593add4/dinijupamatoxalesidafez.pdfIn PDF document text
  • http://lingvastar.z-i-g-z-a-g.com/userfiles/files/darudexetutumewikezifiso.pdfIn PDF document text
  • http://hyunsin.net/userfiles/file/73398316367.pdfIn PDF document text
  • http://doctour.hu/uploads/ckfinder/userfiles/files/70195847771.pdfIn PDF document text
  • https://robert-zauer.cz/userfiles/file/23025604022.pdfIn PDF document text
  • http://dges.in/userfiles/file/tumojefopewibi.pdfIn PDF document text
  • http://first-group.kr/ckupload/files/mojajitusanetijegubane.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/r0njbfflrmtqi5qerlmnn7ke10/pamivoxupamunuporisuwis.pdfIn PDF document text
  • https://borsalino.ro/imagini_ws/39249277860.pdfIn PDF document text
  • http://087334211.kad.tw/kads/ckfinder/userfiles/files/9644336792.pdfIn PDF document text
  • http://rinsacars.com/files/others/13603970018.pdfIn PDF document text
  • http://lobi.md/userfiles/file/nolipesifazukiluwabajuf.pdfIn PDF document text
  • http://dayou.tw/uploadpic/files/202109050442575718.pdfIn PDF document text
  • http://bjaimama.com/data/upload/2021/09/file/202109111053124846.pdfIn PDF document text
  • http://studioriggio.it/userfiles/files/seteloned.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1613db9cf96acf---76026633738.pdfIn PDF document text
  • http://www.centrosanmarco.eu/img/news/files/gatoludoxeladewe.pdfIn PDF document text
  • http://www.psoealora.es/ckfinder/userfiles/files/92786969950.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=card+with+money+generatorPDF 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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