Malicious PDF — malware analysis report

Heuristics 5

• 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 https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff14a0acd3---xakomawamuxid.pdf In PDF document text

  • http://foodsafebox.com/ckfinder/userfiles/files/79523782593.pdfIn PDF document text
  • http://www.stadion-zarya.ru/ckfinder/userfiles/files/50752784932.pdfIn PDF document text
  • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/64664f86ba7b63cc9dad3f2a3b2b1d6c/buzanofaz.pdfIn PDF document text
  • https://www.retake.dk/ckfinder/userfiles/files/kemusu.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/87559758296.pdfIn PDF document text
  • http://france-ex.com/images/blog//file/54472413467.pdfIn PDF document text
  • https://x-software.cz/data/file/11615654863.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6568a9f33f---somixodejesewara.pdfIn PDF document text
  • https://myphi.biz/nbloom/fckuploads/file/16107155994.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070ceb479a41---ganotobat.pdfIn PDF document text
  • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac7148e5f78---nafodevatulanumimom.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/00251711dca137987cfdef58de46d265/zirel.pdfIn PDF document text
  • http://network-italia.it/file/89977329336.pdfIn PDF document text
  • http://perlawarmii.pl/userfiles/file/jupufijojupabujoxutubod.pdfIn PDF document text
  • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610b6ffcd1be2---45352861231.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/6b28f13c7ffe4769d5c2ca014868a123/59625870116.pdfIn PDF document text
  • http://tinavaron.com/ckfinder/userfiles/files/51793888424.pdfIn PDF document text
  • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080e60d2900f---90065819494.pdfIn PDF document text
  • https://yellowstonewildlife.com/27920501647.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16107705b21a54---valatejadifisudepexav.pdfIn PDF document text
  • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/c235012220cdabd84caa71570b88fa18/5598124915.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160be7a5905e09---78653407200.pdfIn PDF document text
  • http://baaningdoi.com/file_media/file_image/file/notuxomaxosol.pdfIn PDF document text
  • http://fence-alarm.com/userfiles/files/tanedaxisozineganigux.pdfIn PDF document text
  • http://zulassungsservice4you.de/bilder/file/42446736465.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607fed2732fad---detaladekopu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=problem+solving+speaking+activities+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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