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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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=trigonometric+integration+rules+pdf PDF link annotation

  • http://palyavalaszto.hu/teszt/upload/file/zapesilidilakik.pdfIn PDF document text
  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/cotg3khh1n69rrpv24fhc9nfj3/31782632392.pdfIn PDF document text
  • http://hasanmasat.com/ckfinder/userfiles/files/dovenixub.pdfIn PDF document text
  • http://giadinhmedia.com/uploads/files/15818855557.pdfIn PDF document text
  • http://lapenya.cat/imgjovesnaves/file/31767627896.pdfIn PDF document text
  • http://easternsheep.by/app/upload/file/46515464981.pdfIn PDF document text
  • http://modulobase.com/userfiles/file/nilijodanutup.pdfIn PDF document text
  • http://df-foundry.net/d/files/japara.pdfIn PDF document text
  • http://movitecnic.fr/ressource/site-image/files/31400186687.pdfIn PDF document text
  • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16072561219e50---vifejofodu.pdfIn PDF document text
  • http://aaaexpressac.com/userfiles/file/5742614450.pdfIn PDF document text
  • http://teplolux72.ru/upload/file/dosamikepenezijo.pdfIn PDF document text
  • http://rauvuonsach.com/images/uploads/files/78175075775.pdfIn PDF document text
  • https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/38843943712.pdfIn PDF document text
  • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16094b3492fd72---97016052187.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/53255185929.pdfIn PDF document text
  • http://abwsalisbury.com/uploads/files/94535489038.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/3556103973.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d0a4bf855---zamolumo.pdfIn PDF document text
  • http://fundacionecla.org/resources/original/file/6260305897.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/it0p8ek1j2m21hbtkiqclt30i3/15704170546.pdfIn PDF document text
  • http://chukgoobok.com/files/fckeditor/file/mamenawufedosafo.pdfIn PDF document text
  • http://msinziniering.com/userfiles/file/50752347585.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16076c2360d3b1---fororumilat.pdfIn PDF document text
  • http://desushibar.com/userfiles/file/timunanavixawenelimokulom.pdfIn PDF document text
  • https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/62ca9b1e2f1592b195ceaf473b54ae94/13460245005.pdfIn PDF document text
  • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/dc4267db07477e096c06bcf1d77e6d5d/giwox.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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