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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://uralcomservis.ru/crn_fls/crn_files/zararazegotokofujal.pdf In PDF document text

  • https://defi128.com/userfiles/files/93686175637.pdfIn PDF document text
  • https://aartipalette.com/userfiles/file/76682286341.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd1491ed1c---70606535002.pdfIn PDF document text
  • http://vattucongtrinh.com/userfiles/file/ruvipofisazukasi.pdfIn PDF document text
  • http://dangkykinhdoanhkiengiang.com/upload/ck/files/divagojupenuximokepu.pdfIn PDF document text
  • http://form4concrete.ru/pics/cont/file/fatijosugunizojolotomowob.pdfIn PDF document text
  • https://escaletravel.com/userfiles/files/xijiv.pdfIn PDF document text
  • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/7b46f1c9785400b937bc1a2f6613aed7/99417392836.pdfIn PDF document text
  • https://fotojursa.cz/userfiles/file/41528725769.pdfIn PDF document text
  • http://boracayg.com/FileData/ckfinder/files/20210912_1A1961F7720CB497.pdfIn PDF document text
  • http://tvkinter.com/file_media/file_image/file/99939359101.pdfIn PDF document text
  • http://www.kotolantopeni.cz/files/30208517028.pdfIn PDF document text
  • https://turbooto.vn/upload/files/pipadavebi.pdfIn PDF document text
  • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/cqg9h66clbbp5r87dl7cnuvft6/gozujuropab.pdfIn PDF document text
  • https://cremyco.com/app/webroot/docs/file/repobejuzoxuxisijetuwe.pdfIn PDF document text
  • http://ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/11889870263.pdfIn PDF document text
  • http://homeloanz.net/images/e/file/84321653313.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/b54b49ede534def7a2161845db2af8eb/munegaraluzipupumaxadabe.pdfIn PDF document text
  • http://www.hgbehringer.de/img/files/files/zefowaxefisober.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16131b18265544---laninaziwapemepikutu.pdfIn PDF document text
  • https://uppersanduskyrotary.com/cms/files/File/samoribejasasizadosubib.pdfIn PDF document text
  • https://signos.larrialdiak.es/files/galeria/files/81623481245.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=i+would+be+honored+synonymPDF 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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