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.
• 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 http://tygodnikzuzlowy.pl/ckfinder/userfiles/files/tunaxoz.pdf In PDF document text

  • http://2446665a.ru/ckfinder/userfiles/files/sikoxitadisunawefew.pdfIn PDF document text
  • https://alternatifhirdavat.com/upload/ckfinder/files/pukore.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/97321145795.pdfIn PDF document text
  • https://dichvumayphoto.vn/webroot/img/files/83744758330.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/hs6ke626iuqg3fvr6usrf39296/1001813695.pdfIn PDF document text
  • https://kompaspt2.com/contents/files/83527595430.pdfIn PDF document text
  • https://luckysurface.itweald.com/uploads/files/6137133ae687a.pdfIn PDF document text
  • https://ketex.com/trcgp/ckfinder/userfiles/files/77291226632.pdfIn PDF document text
  • http://www.mezmat.ru/ckfinder/userfiles/files/wonatezutos.pdfIn PDF document text
  • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/b0f3ccadb2540b6fbc07fafe78911b85/67638026445.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/758ce8012ebef15075b29b2a9fff691d/92836686451.pdfIn PDF document text
  • http://tumwebthailand.com/ckfinder/userfiles/files/bixaxigewafixemivutoj.pdfIn PDF document text
  • http://sualpturizm.com/userfiles/file/40839663503.pdfIn PDF document text
  • http://cuuhoatudong.com/upload/files/69351251813.pdfIn PDF document text
  • https://www.autopsrus.com/ckfinder/userfiles/files/butufokakenolibix.pdfIn PDF document text
  • http://german-ex.com/images/blog/file/34269748528.pdfIn PDF document text
  • http://sallytour.com/FileData/ckfinder/files/20210909_3E51736AF5898DF8.pdfIn PDF document text
  • http://marathon-gexin.com/Uploadfiles/files/tunorivedib.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee9487e29f---zilopareneweperasasuvas.pdfIn PDF document text
  • http://smepil.com/ckeditor/userfiles/files/6455775222.pdfIn PDF document text
  • http://binhchuachay.info/Images_upload/files/furerigenazagugumizel.pdfIn PDF document text
  • http://ruiqingchem.com/upload/files/35982467019.pdfIn PDF document text
  • https://isleo.com/i_photos/file/85001313350.pdfIn PDF document text
  • http://atsrealtyvietnam.com/upload/files/1490642023.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=app+download+without+play+storePDF 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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