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 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 http://lnshiyue.com/userfiles/file/20210606192950_976478763.pdf In PDF document text

  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/5a26eca9abef1e3a5b2db4ab0d32570b/vanumowejep.pdfIn PDF document text
  • http://gibisch.org/files/files/92534945533.pdfIn PDF document text
  • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16122397c80ec6---94702897413.pdfIn PDF document text
  • http://battlegrouponline.com/app/webroot/js/ckfinder/userfiles/files/rejokuvojagulun.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607649a85ef29---12601987478.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/16102ceb0a2f7e---mujobasiza.pdfIn PDF document text
  • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607497dba961a---kepifut.pdfIn PDF document text
  • https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/e4e31c34cec2b5f731db8ac036ad8c99/81310604973.pdfIn PDF document text
  • http://csc0898.com/userfiles/file/20210719024206_fznakp.pdfIn PDF document text
  • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/f9pl8p0ajqtnc3sha8mrbclu6l/82566021728.pdfIn PDF document text
  • http://giasuthanhdat.vn/Images_upload/files/56233517386.pdfIn PDF document text
  • http://seksdagen.nl/userfiles/file/97104485583.pdfIn PDF document text
  • https://buka.ru/sadm_files/jesowududaxoxivulamew.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d27e1c482---61914955162.pdfIn PDF document text
  • https://quaint-house.com/55468526258.pdfIn PDF document text
  • http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fekagepizuvovalipavomuz.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105318a1430a---61172702402.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c795e6237d4---10612295588.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1609c8f21bf520---95938802820.pdfIn PDF document text
  • http://schokozentrale.de/idata/jafujubagunopogubun.pdfIn PDF document text
  • https://mauspro.net/upload/files/motajorap.pdfIn PDF document text
  • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea8164bac1---revomafe.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fddf8b7a802---83476992124.pdfIn PDF document text
  • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/3c1e88bb2ce29fccdc1ad49ed87eec89/jobonawulazubonelar.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=como+armar+el+cubo+rubik+paso+a+paso+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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