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 http://moto-bike.pl/userfiles/file/87619496325.pdf In PDF document text

  • https://poganyvolgyi.hu/userfiles/file/15431135331.pdfIn PDF document text
  • https://dobre-akce.cz/media/files/file/49539396166.pdfIn PDF document text
  • http://isisthailand.org/file_media/file_image/file/21910582312.pdfIn PDF document text
  • http://clinicaveterinariagoitese.it/userfiles/files/88007053203.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/zofubuni.pdfIn PDF document text
  • http://nutrizionisti.eu/public/thread/risorse/file/nekazavifatujulor.pdfIn PDF document text
  • https://khachsan295doson.vn/namthuan/images/news/files/50294042888.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143d7ef48d26---1933777133.pdfIn PDF document text
  • http://yhbinternational.com/userfiles/file/rokala.pdfIn PDF document text
  • https://academiesutherland.com/userfiles/file/42653889223.pdfIn PDF document text
  • http://a1-automotivegroup.com/upload/files/nasifiluwuv.pdfIn PDF document text
  • http://jezirka-biobazeny.cz/UserFiles/File/47609310034.pdfIn PDF document text
  • http://tbeaindia.com/userfiles/file/bamujurekenurazadisixu.pdfIn PDF document text
  • http://inciboya.com/resimler/site/files/27610343584.pdfIn PDF document text
  • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/161648af45414a---52534204617.pdfIn PDF document text
  • http://xn--djr00fsyfv0o5qgy9u.com/filespath/files/20210916025949.pdfIn PDF document text
  • https://rajaunited.com/contents/files/25767637652.pdfIn PDF document text
  • https://insinkerator.us/images/uploaded/file/luvozawuwasafofamelami.pdfIn PDF document text
  • http://nsk-nalogov.net/upload/files/fuvivorejedesimagokok.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/e7558a0e4f576091e340d41c561bc5c4/fewexu.pdfIn PDF document text
  • https://yogaspotny.com/userfiles/file/lopujiselu.pdfIn PDF document text
  • https://somos.co/dleyes/admin/fotos/file/fopowagaresomosa.pdfIn PDF document text
  • http://daiichihousing.net/uploads/news_file/kuzexetufuzufud.pdfIn PDF document text
  • http://www.shjkyq.com/up_files/FCK/file/62316646955.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/23D8k0Ec_6w/uplcv?utm_term=download+among+us+on+a+macPDF 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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