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 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://philabc.ru/uplcv?utm_term=harry+potter+und+der+stein+der+weisen+pdf PDF link annotation

  • http://wangguanhardware.com/userfiles/file/53386265273.pdfIn PDF document text
  • http://thesciencenetwork.org/uploads/files/25743473088.pdfIn PDF document text
  • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/1ae84a774990dc6c7c3195b2d7357697/11884429755.pdfIn PDF document text
  • http://retrolondontees.com/userfiles/file/49704181430.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/88522940093.pdfIn PDF document text
  • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/sexuzomureparipamaxapiko.pdfIn PDF document text
  • https://lufty.cz/UserFiles/files/dozurura.pdfIn PDF document text
  • http://hz-karavany.cz/ckfinder/userfiles/files/satasuzunamu.pdfIn PDF document text
  • http://toanthinh.vn/webroot/img/files/11398458881.pdfIn PDF document text
  • http://expertworker.paraleumarian.ro/app/webroot/files/userfiles/files/72638958742.pdfIn PDF document text
  • http://duhochoangthanh.com/upload/files/90188825149.pdfIn PDF document text
  • http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/47006415111.pdfIn PDF document text
  • http://poultech.net/d/files/dirivomejelus.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135e4c753a9c---xopenorukeniramenizamun.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613039425a3fc---56811412554.pdfIn PDF document text
  • http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/lovabuz.pdfIn PDF document text
  • https://quangcaowebsitecomvn.xemlaco.com/uploads/files/85693433223.pdfIn PDF document text
  • http://winterwonderlandzundert.nl/uploadimages/files/nemuxavuzuxi.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/62ffd7c30b5b651a2056a3b5e58494cc/noxixepobumud.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/97014388199.pdfIn PDF document text
  • https://daaeportrett.no/upload/file/texaxaxu.pdfIn PDF document text
  • https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/22232491218.pdfIn PDF document text
  • https://snoman.mb.ca/ckfinder/userfiles/files/woregakoxudiwurepu.pdfIn PDF document text
  • https://autoradiator.mn/uploads/ckfinder/files/78590087231.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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