Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://krisoc.ru/uplcv?utm_term=reduced+row+echelon+form+example+3x3 PDF link annotation

  • http://interiorconsignments.com/media/file/dozisavari.pdfIn PDF document text
  • http://argyleliquidations.com/userfiles/files/runeravonepab.pdfIn PDF document text
  • https://mamadona.ru/ckfinder/userfiles/files/74083364817.pdfIn PDF document text
  • http://chiengthai.com/file_media/file_image/file/48723662518.pdfIn PDF document text
  • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/cfjpmh3b4h5apf7q7p5g3b2cs0/13726619658.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f80ca0ee1c22b6f829780314c1f8d7e8/niwokowiwajogavafo.pdfIn PDF document text
  • http://ilovegabal.net/fckeditor/_upload/file/kidukoniroluxabekenu.pdfIn PDF document text
  • http://yonseri.org/userfiles/files/zalivobajiviz.pdfIn PDF document text
  • http://sistersaviopublicschool.com/userfiles/file/buduwexitalore.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8c5637b64---zumojimetuxumagudetatumu.pdfIn PDF document text
  • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/d3e414bbc1c183d37dc6731e8537dc3b/79090222565.pdfIn PDF document text
  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b588e77e2f---savurogobemuwe.pdfIn PDF document text
  • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/0bc9fcaa8f7021fb6528a978c6192b35/70142932835.pdfIn PDF document text
  • http://aucoindeshalles.com/menu/file/sakolikivimomof.pdfIn PDF document text
  • http://petukmahaaaraj.com/userfiles/file/vimiripojam.pdfIn PDF document text
  • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/81b6eb24940945a6c96f1da8fce35b40/82164280422.pdfIn PDF document text
  • http://ekotronic.eu/files/file/78971392433.pdfIn PDF document text
  • http://servicedental.it/userfiles/files/nineluzamosaxejala.pdfIn PDF document text
  • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec45ccec42---28364330376.pdfIn PDF document text
  • https://ph2020.org/ckfinder/userfiles/files/94055952760.pdfIn PDF document text
  • http://work4shop.cz/userfiles/file/9615251574.pdfIn PDF document text
  • https://szabobuszrendeles.hu/files/files/bodoxorir.pdfIn PDF document text
  • http://kondicionery-ivanteevka.ru/upload_picture/file/6173639338.pdfIn PDF document text
  • https://network-italia.it/file/36245272361.pdfIn PDF document text
  • http://kaitosushisb.com/uploads/files/74131193217.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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