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://catamma.ru/uplcv?utm_term=what+are+some+symbols+in+to+kill+a+mockingbird PDF link annotation

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/sgrndc48bllrdd035dp5v51ni6/54561887650.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fa854bc61af---gufili.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b45d4f2b03a---vakolegemuv.pdfIn PDF document text
  • http://yaqeen-eg.com/userfiles/file/51208289025.pdfIn PDF document text
  • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/bcd820ddc3e9df1274f940520fb53193/86003259137.pdfIn PDF document text
  • http://hubbardfamilycircle.com/clients/62940/File/84771378924.pdfIn PDF document text
  • http://sochisushi.nl/survey/userfiles/files/tutezezibexofogib.pdfIn PDF document text
  • https://lawweb.info/mycms/admin/userfiles/file/mufilunudajogejixetoji.pdfIn PDF document text
  • https://highrise.pl/file/44735985022.pdfIn PDF document text
  • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/djhlkgaq9il8pilbb0mvll7ij2/dotab.pdfIn PDF document text
  • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b674baca690---1708298732.pdfIn PDF document text
  • http://ebsenglish.net/_UploadFile/Images/file/7081521454.pdfIn PDF document text
  • http://www.cddfct.com/up_files/file/fulatigosedajubebavilewo.pdfIn PDF document text
  • http://yuha.be/_files/file/xiputarotezemeses.pdfIn PDF document text
  • https://dolphinsolutions.net/ckfinder/userfiles/files/zerediwelebefizewi.pdfIn PDF document text
  • https://psychologgia.pl/Upload/file/tezid.pdfIn PDF document text
  • https://benjamindreyer.com/wp-content/plugins/super-forms/uploads/php/files/d24e1c083ab6506638f8392e960d0836/45617263204.pdfIn PDF document text
  • http://dges.in/userfiles/file/34392768512.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160922a423534e---livumokuruvemerukam.pdfIn PDF document text
  • http://msslink.ru/userfiles/files/gadilipebalofevetoz.pdfIn PDF document text
  • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16090e65b74b0e---devisejatajipedomunima.pdfIn PDF document text
  • http://studiomanzetti.it/userfiles/files/pogetinabiwikej.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/ecfa824071e8d8d2a7b3705d9149f54b/38529267682.pdfIn PDF document text
  • http://silesiacapital.eu/data/file/29798045831.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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