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://asbufestival.com/uploads/FCK_files/file/58905954138.pdf In PDF document text

  • https://free-spirit-city.eu/uploads/wysiwyg/files/3912255435.pdfIn PDF document text
  • http://nguyenxuanhuong.com/upload/files/65497262640.pdfIn PDF document text
  • https://aadharshilaschool.org/userfiles/file/revagib.pdfIn PDF document text
  • https://igk-lilienthal.de/downloads/74022212442.pdfIn PDF document text
  • http://studioingtassinari.eu/userfiles/files/vuduj.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/m1q7fjq0ikkh9is3v6n8opdi5g/nakosenamuwerilosojanupez.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/85666961869.pdfIn PDF document text
  • http://locke-3c.tw/uploads/files/202109251502028840.pdfIn PDF document text
  • https://fruitssupplier.com/app/webroot/img/files/76715659072.pdfIn PDF document text
  • http://cmtl.in/uploads/userfiles/file/file/81517872191.pdfIn PDF document text
  • http://liveisagenix.com/ckfinder/userfiles/files/somovonofugowu.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16159c68841732---20021469225.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/ossdc4goovojubjoebtaldaub7/27343850352.pdfIn PDF document text
  • http://abaj.cz/UserFiles/File/56420863319.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1616e36075454e---65766198122.pdfIn PDF document text
  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/67c1183a9e083681def1485a8dcfcf46/zalonawirijumimarulap.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/rivarexa.pdfIn PDF document text
  • http://www.centralperdana.com/file/daxakub.pdfIn PDF document text
  • http://pes.edu.mn/ckfinder/userfiles/files/nisido.pdfIn PDF document text
  • https://igraonica.me/userfiles/file/85109498323.pdfIn PDF document text
  • http://romengo.com/ckfinder/userfiles/files/26432693277.pdfIn PDF document text
  • http://roycraft.ca/userfiles/file/fatowadevijepexudir.pdfIn PDF document text
  • http://droprint.my/home/ququ4923/public_html/userfiles/file/60601496525.pdfIn PDF document text
  • http://amuseonline.com/absite/userfiles/file/44037655856.pdfIn PDF document text
  • http://feedproxy.google.com/~r/MbOu/~3/TSvcnjQ06Jg/uplcv?utm_term=quizzes+with+questions+and+answersPDF 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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