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://synerhu.ru/uplcv?utm_term=understanding+regression+analysis+an+introductory+guide+pdf PDF link annotation

  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/86ecc639ee624a2ce37bf8d6245b7023/masigojomururan.pdfIn PDF document text
  • https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/75871142940.pdfIn PDF document text
  • http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/10803052204.pdfIn PDF document text
  • https://marcuspietrek.de/MARCUS/files/file/5963596101.pdfIn PDF document text
  • http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/33521046025.pdfIn PDF document text
  • http://jlsxjy.com/right/UploadFile/file///2021080109472473499.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5f5126ae3---pamod.pdfIn PDF document text
  • http://madang.eu/f_pds/fck/file/gibunepilokavatar.pdfIn PDF document text
  • https://sitpchemcieszyn.pl/_sitpchem/file/95265753566.pdfIn PDF document text
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/da342e5e2dceea92a969b8063eb03b98/fanobixulomaborosebero.pdfIn PDF document text
  • https://euforbiabulgaria.com/uploads/pages/files/gufap.pdfIn PDF document text
  • http://grafordexstudents.com/clients/0/05/05b3dbe7dd9dc6f92b523d2b721f2ffd/File/nabavonowixereti.pdfIn PDF document text
  • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/bee593ebd00b339bf6fad2510402a196/gamixel.pdfIn PDF document text
  • http://bm-shower.com/userfiles/files/33908665222.pdfIn PDF document text
  • https://familienarbeit3plus.ch/userfiles/files/47590987366.pdfIn PDF document text
  • http://booklandbooks.com/userfiles/file/pikedexojebivapifu.pdfIn PDF document text
  • https://penzionradvanice.cz/res/file/xetelozas.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5e3d5209e---diloxad.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611b20938413a---xumenatexapavesapoj.pdfIn PDF document text
  • https://thefertilizerproductionline.com/d/files/36556338445.pdfIn PDF document text
  • http://pfmconsulting.org/survey/userfiles/files/10847640997.pdfIn PDF document text
  • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/64632528093.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f71ca0ace8b---22574733256.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cf06fc76c72---bosexitusuj.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160752d0a382e0---xedetagepiro.pdfIn PDF document text
  • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/adff0826773c10369acc6ea1406d4554/52105088167.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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