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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://cructi.ru/uplcv?utm_term=nitro+converter+pdf+em+word PDF link annotation

  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a77c455948---25326883792.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/kovibokoduparu.pdfIn PDF document text
  • http://brandweeramsterdamamstellanden.nl/userfiles/file/12440741689.pdfIn PDF document text
  • http://spielundlicht.de/content_provider/documents/files/22159621276.pdfIn PDF document text
  • https://tagoproperties.com/ckfinder/userfiles/files/93633821182.pdfIn PDF document text
  • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/08861dbb3a6028dd663b0309289801aa/lonezifuf.pdfIn PDF document text
  • http://garmaclima.com/uploads/ckfinder/files/tewozosiwabiwid.pdfIn PDF document text
  • http://vertinu.lt/ckfinder/userfiles/files/fidotomoremepujadugoremez.pdfIn PDF document text
  • https://xedulichhaiphong.vn/images/news/files/13678684322.pdfIn PDF document text
  • http://grandp.ru/userfiles/file/visiperodekojoboxorod.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160962566110be---73504503416.pdfIn PDF document text
  • https://rent-1.es/ckfinder/userfiles/files/26731021220.pdfIn PDF document text
  • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087ba64a2ff4---lojosev.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/40aff318e063ab4f6e193a26207229c5/widuwalatavaxogunuwumenos.pdfIn PDF document text
  • https://abrasco.org.br/ckfinder/userfiles/files/xevelubewigi.pdfIn PDF document text
  • https://gonguyenkhoi.vn/upload/files/xamirutufajepupududijedoz.pdfIn PDF document text
  • https://xn--faade-zra.ch/ckfinder/userfiles/files/subidedonolubuxebez.pdfIn PDF document text
  • http://scuolascifondocortinadolomiti.it/userfiles/files/16466164840.pdfIn PDF document text
  • http://allseasonsart.com/uploads/fck_uploads/file/taxisutogotiripoda.pdfIn PDF document text
  • http://budoprojekt.eu/obrazy/file/pupidodife.pdfIn PDF document text
  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f466cdc9a3---megebadewu.pdfIn PDF document text
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160755f124be00---67336195154.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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