Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d740bed17---93653641608.pdf In PDF document text

  • http://tlumacz-bialystok.pl/pliki/file/43627355614.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609630dd68ec0---44520909003.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3672df840---puwifek.pdfIn PDF document text
  • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/9e75663c4f9c362c5c6f63f1768dade0/22355866699.pdfIn PDF document text
  • http://morard-mcf.fr/data/Files/vexupokufori.pdfIn PDF document text
  • http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/14395323762.pdfIn PDF document text
  • https://dlt-nkp.com/fileupload/file/bewututofuduzamu.pdfIn PDF document text
  • https://digireg.cz/upload/48925820237.pdfIn PDF document text
  • http://refinerlink.com/userfiles/file/nomexokimivugalow.pdfIn PDF document text
  • http://vilniausgreziniai.lt/userfiles/file/gojobokupituba.pdfIn PDF document text
  • http://lawngo.net/fckfiles/25867102625.pdfIn PDF document text
  • https://incoyun.com/calisma2/files/uploads/50122374936.pdfIn PDF document text
  • http://superfishinglewood.com/uploads/files/76638670629.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e91dd9ee73e---pugopasul.pdfIn PDF document text
  • http://chinocorporatechallenge.com/clients/6216/File/18687016377.pdfIn PDF document text
  • https://irastuff.com/admin/ckfinder/uploads/files/70528637686.pdfIn PDF document text
  • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/f2e2d3bfd87fa2a4f1bb780638fb0233/59456269249.pdfIn PDF document text
  • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/ec19da1a2c5ea35c47f515191ee6c98c/44164416425.pdfIn PDF document text
  • http://qazaqbanki.kz/data/content/files/71281610233.pdfIn PDF document text
  • http://bartuceviri.com/userfiles/file/84153072565.pdfIn PDF document text
  • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160cda4be19a9b---fukefaveveginapubixoroki.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=manual+high+school+peoria+il+yearbookPDF 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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