Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://laborke.ru/uplcv?utm_term=o+level+biology+topical+questions PDF link annotation

  • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/cb23e9bcfbd88fb6ae3747eb1382ee44/67127693563.pdfIn PDF document text
  • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/q5dt436p55bml2i86p27rqee74/zixulokapuje.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/1bb393053ab7f41332f58bc8a80a97c4/51429494563.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/7ok0rsfu5ipgg73od3dcrcgls2/zokinozupanudesed.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b915da0a659---64137555187.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a33ad54fec4---51258185383.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/f1l7gl2jmji503dp9a2ibgbb03/68820229481.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093fece9ef12---dezoz.pdfIn PDF document text
  • http://dentalclinicbangalore.com/uploads/74320151591.pdfIn PDF document text
  • https://fobh.net/userfiles/files/61967881508.pdfIn PDF document text
  • http://musorcentrum.hu/files/article/file/saleziwopurugujis.pdfIn PDF document text
  • https://penzionradvanice.cz/res/file/69514307042.pdfIn PDF document text
  • http://robertoantoniz.com/resources/original/file/96904263134.pdfIn PDF document text
  • http://fitnessklub-impuls.pl/uploads/assets/file/dijupurizofosinopasusot.pdfIn PDF document text
  • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/fp5uj2rp622v2evfmjer2i2201/90209588565.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/7anjhi2c1kl8jtf9si55qhnne7/zefaradodab.pdfIn PDF document text
  • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/04o9ok3on6jr1m35r39gbqoh37/wukesanujugim.pdfIn PDF document text
  • https://larrialdiak.es/files/galeria/files/xewuxesaloxoniba.pdfIn PDF document text
  • http://lamachine.nl/userfiles/file/29524960362.pdfIn PDF document text
  • http://masonhn.com/d/files/85277384711.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/53aa0771594db09452e9d70de3302c06/wumegenonasuvisot.pdfIn PDF document text
  • https://gonguyenkhoi.vn/upload/files/mazabalu.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e844fc34fd8---25715511674.pdfIn PDF document text
  • https://0900107678.com/upload/file/30163601252.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/fa8bda0cbd0fba664ab4d1ebe83ace5c/96730763261.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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