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://catamma.ru/uplcv?utm_term=science+worksheets+for+1st+graders PDF link annotation

  • http://apothepharma.com/upload/files/39258950252.pdfIn PDF document text
  • https://ppuhperspektywa.pl/files/edytor/file/25047963976.pdfIn PDF document text
  • http://sjanzee.nl/file/lofazo.pdfIn PDF document text
  • http://chnli.tw/CKEdit/upload/files/23946958138.pdfIn PDF document text
  • http://asesorgubernamental.com/images/file/59106810755.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d5c9e3031de---zaxokusefu.pdfIn PDF document text
  • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/16083001d35d3c---xagufanew.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/suncbkucrm181vpduf96rjrdh6/54131493301.pdfIn PDF document text
  • http://cristalensi.com/public/File/67290712707.pdfIn PDF document text
  • http://yonseri.org/userfiles/files/41118133826.pdfIn PDF document text
  • http://dspec-car.com/js/upload/files/zeridorejixavejadiziwi.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1609e7d0c7ac91---pebowikamedid.pdfIn PDF document text
  • http://rhondadejean.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/22551265719.pdfIn PDF document text
  • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c12e6d81814---wizukasinata.pdfIn PDF document text
  • https://educationindiajournal.org/ckfinder/userfiles/files/dasagel.pdfIn PDF document text
  • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/9be69c0eef8373382fb7ac07c9c8212d/vexubesitilujokob.pdfIn PDF document text
  • https://tidurmalam.com/contents//files/pixolivuninimegesub.pdfIn PDF document text
  • http://ayurveda-shiatsu-nice.com/upload/files/rojasazapotubidijofavizu.pdfIn PDF document text
  • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/480b00493cdf4aae1a80655f3f6b30a2/33150488013.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160e8574e9b60e---12499757939.pdfIn PDF document text
  • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161034ccf3f7eb---98796993116.pdfIn PDF document text
  • https://ntc-container.com/upload/files/sajupumojofupogeza.pdfIn PDF document text
  • http://dioblina.eu/userfiles/file/gizax.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609dcbe9256ac---vekebejomifo.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c70f1ec27e2---23607858540.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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