Malicious PDF — malware analysis report

Heuristics 7

• 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 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 https://irlanc.ru/uplcv?utm_term=blank+music+sheet+pdf PDF link annotation

  • http://chothuexeninhbinh.net/data/dulieu/files/11960036843.pdfIn PDF document text
  • http://www.kymenhome-etsinta.net/tiedostot/files/68758352550.pdfIn PDF document text
  • http://juliesfundforkids.com/clients/d/d6/d6f17a7a4e9d342a12f8f8eeddb80b2d/File/nixojifokigulunuxuguz.pdfIn PDF document text
  • http://tanriovermensucat.com/uploads/genel/files/lovevanarakowujulap.pdfIn PDF document text
  • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160834ab963163---20117374819.pdfIn PDF document text
  • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/86137f0osj512nm09s8pf09hg7/14924192075.pdfIn PDF document text
  • http://shs1977reunion.com/clients/41590/File/boxubinujarakireneg.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/9b63a3e212a925ce453833f8c9ebc4c3/lokozape.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/f823c396e306d5d9697fc46e34375f56/94205539993.pdfIn PDF document text
  • https://vetamblj.si/ckfinder/userfiles/files/tagor.pdfIn PDF document text
  • http://mtecommerce.it/public/news/file/metujubogukawajenoro.pdfIn PDF document text
  • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/e23143776a9670cc1a495678e67146de/50446827121.pdfIn PDF document text
  • https://glaskunstcentrum.nl/images/file/tobolelopalikanoje.pdfIn PDF document text
  • http://obrienbuilders.com/userfiles/file/22683755943.pdfIn PDF document text
  • http://expertcomptablecourreges.fr/michel_courreges/userfiles/file/duwoposoda.pdfIn PDF document text
  • http://datavincity.com/uploads/ckfinder/files/93576220861.pdfIn PDF document text
  • http://richmediahouse.com/admin/uploads/file/ruzipurunezisad.pdfIn PDF document text
  • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608abb89cf98e---gipafojuxavuz.pdfIn PDF document text
  • http://sns.hu/_user/file/sileruwagul.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a159e7720bc---12426834812.pdfIn PDF document text
  • https://efficientinfocomm.com/ckfinder/userfiles/files/68175813141.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607af98abf9b5---koruwerukotemepidi.pdfIn PDF document text
  • http://farmaciafasolis.eu/userfiles/files/koluwudavidamokasumag.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/10246211021.pdfIn PDF document text
  • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160832af145c05---bezufedategitulutim.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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