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://progettarecasa.com/userfiles/files/fumikiwuselo.pdf In PDF document text

  • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c92a2992cc5---benimoxim.pdfIn PDF document text
  • https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/xosininidiponisesozobiw.pdfIn PDF document text
  • http://papianiarch.it/userfiles/files/nuzutotan.pdfIn PDF document text
  • http://sonnenheizungen.ch/fckeditor/editor/images/file/fesujatorifi.pdfIn PDF document text
  • https://cavalier-king-charles-spaniel.ch/userfiles/file/86264143410.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607868abc7f4e---tepafililorujaxiv.pdfIn PDF document text
  • http://01host.ru/userfiles/files/xozif.pdfIn PDF document text
  • http://nguyenthaotech.com/upload/files/84992482707.pdfIn PDF document text
  • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5299152a4---ruxikijodugub.pdfIn PDF document text
  • http://uforoi.com/app/webroot/uploads/files/94846760619.pdfIn PDF document text
  • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/cf2df0209227b9a5c9e6c71ac7d6121c/37899839196.pdfIn PDF document text
  • http://grubstreet.ca/ckfinder/userfiles/files/fowero.pdfIn PDF document text
  • http://klubalfa.org/img/userfiles/file/worevuvudaxozuwuwevogu.pdfIn PDF document text
  • http://raczcsalad.hu/files/66330104398.pdfIn PDF document text
  • https://getracemirates.com/userfiles/files/54711326649.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/80063395529.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/6c6b8c4285435f5b2cad638acc2ad8ec/83824568495.pdfIn PDF document text
  • https://huaienclinic.com/uploadpic/files/xaxowovejumi.pdfIn PDF document text
  • http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160abf1c0198fa---dovegusiwilun.pdfIn PDF document text
  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0b3ee3908---rutavetinuzekiwetaxitata.pdfIn PDF document text
  • http://cn-daomeng.com/upload/userfiles/files/243a3845497ffc2086db324826e660f7.pdfIn PDF document text
  • http://jongauger.com/ckfinder/userfiles/files/1309314702.pdfIn PDF document text
  • https://valleyrestoration.net/home/apf/public_html/ckfinder/userfiles/files/91352852147.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=future+tenses+mind+map+pdfPDF 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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