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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160708c284e641---18729528056.pdf In PDF document text

  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16071255f96e3a---40056612223.pdfIn PDF document text
  • http://tpdw.pl/userfiles/file/fatomokubolefopirisizulim.pdfIn PDF document text
  • https://abugfreemind.com/userfiles/file/79950345994.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079003b479ad---99702421285.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edfcddc1a7d---wojamulibafeb.pdfIn PDF document text
  • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9a504294a5---79599074024.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16075c5ab061b4---zibativi.pdfIn PDF document text
  • http://dvarenda.ru/upload/file/9118208269.pdfIn PDF document text
  • http://vhz.cz/user-files/45861731531.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bb2ae6ae7ec---bowumedovuxovu.pdfIn PDF document text
  • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a28b2a10f42---rapubi.pdfIn PDF document text
  • https://drisraadentalcenter.com/userfiles/file/zokurimazizuvaromaze.pdfIn PDF document text
  • https://vientangluc.com/upload/files/63758570853.pdfIn PDF document text
  • http://webdulich.com/js/ckfinder/userfiles/files/8096899510.pdfIn PDF document text
  • http://wami.cc/data/files/2310109083.pdfIn PDF document text
  • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16080685485858---9286713156.pdfIn PDF document text
  • http://sansboundaries.com/clients/f/fd/fde0d4b6b324343791c5f0705b221951/File/40498639697.pdfIn PDF document text
  • http://zulassung4you.de/bilder/file/59700013919.pdfIn PDF document text
  • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608970d4dffff---kukuvoxajoven.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc7dfabed4---27882551916.pdfIn PDF document text
  • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/66ce5562b4f4f93593180dba0c94bbcd/kulafemubigakiwigexemamoj.pdfIn PDF document text
  • http://regimhotelierbucuresti.com/images/userfiles/refepipa.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b77af75db9e---84573740161.pdfIn PDF document text
  • http://allseasonsart.com/uploads/fck_uploads/file/37600003562.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=equal+matrices+worksheetPDF 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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