Malicious PDF — malware analysis report

Heuristics 6

• 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 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://olsztyntransportmedyczny.pl/userfiles/file/fisuwolukusamusilos.pdf In PDF document text

  • https://limmaginebistrot.com/file/tabazajo.pdfIn PDF document text
  • https://horgaszvelem.hu/ckfinder/userfiles/files/joxamupot.pdfIn PDF document text
  • http://tz5168.com/uploadfile/image/2021/06/05/file/20210605_031557_105.pdfIn PDF document text
  • http://exhibitionchannel.com/upload/lasofudetur.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607836295e588---busifobif.pdfIn PDF document text
  • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/4c0okc0sle3k5jq6p6bs0dqf0c/tujan.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160856eb329f6c---1301935575.pdfIn PDF document text
  • http://php-lounge.de/userfiles/file/37970764577.pdfIn PDF document text
  • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/90ebaa4951bc9bf423da4756841ba07e/zumazifop.pdfIn PDF document text
  • http://ejmk.com/ej/upload/files/43092080848.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c81f2bdcf---malajekuv.pdfIn PDF document text
  • http://petraifevronii.ru/ckfinder/userfiles/files/xuwuwaruvizanibiv.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/rv5rbuennvn07b75hvra8b56b1/66795141095.pdfIn PDF document text
  • http://prime-standard.com/piceditor/file/29259583963.pdfIn PDF document text
  • http://bahattinburyan.com/userfiles/file/9936491565.pdfIn PDF document text
  • http://www.houstonorientalrug.com/ckfinder/userfiles/files/dakukedoges.pdfIn PDF document text
  • http://brmxn.com/userfiles/file/20210521185032_u0gez0.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608be455b3a87---93608212058.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4152386344---pumupulajepadojebuxunesuk.pdfIn PDF document text
  • http://yasaitogo.com/uploads/files/famiwiwaziwerudakojefow.pdfIn PDF document text
  • http://diversecityuk.com/userfiles/file/rajojaganolonilikowebado.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7715132fe---domuzaxux.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=the+crystals+rudolph+the+red+nosed+reindeerPDF 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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