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://ybshajiang.com/userfiles/file/2021-09-11/210911124535204735hng8ywtlhnly.pdf In PDF document text

  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/upljopca1u1ticaa7oae6h35m7/muxutuligalijesej.pdfIn PDF document text
  • https://koltoztetes-szallitas-lomtalanitas.excore.hu/ckfinder/userfiles/files/xikegolelumanibev.pdfIn PDF document text
  • http://www.polni.si/Images/files/90210695750.pdfIn PDF document text
  • http://ahkjt.com/upfile/file/3696841974.pdfIn PDF document text
  • http://eschool365.in/js/admin/uploadfiles/file/76084419285.pdfIn PDF document text
  • http://hyunsin.net/userfiles/file/4874544071.pdfIn PDF document text
  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9b6d15af0---12616542123.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/j61s76pbo0bpinemilagqlvnv7/6117866818.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134a3cfaa6ed---69533711455.pdfIn PDF document text
  • https://glamweddingdesign.com/userfiles/file/25443268929.pdfIn PDF document text
  • http://asude.istanbul/ck_images/files/89504180324.pdfIn PDF document text
  • http://opt-russtd.ru/data_center/upload_pictures/file/71888826955.pdfIn PDF document text
  • http://bjjiffy.com/upload/veruxekulinewidunizisomiz.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/76c8447bbf0b9285b902757ee284de55/51188642666.pdfIn PDF document text
  • http://cestovni-postylka.eu/userfiles/file/13123976874.pdfIn PDF document text
  • http://bartuceviri.com/userfiles/file/narulidatodopirudulubuw.pdfIn PDF document text
  • http://www.ochoadentalcare.com/tacgestorcontenidos_ochoa/documentos/file/In PDF document text
  • http://ajisushionline.com/uploads/files/mupepefizafinerevaxude.pdfIn PDF document text
  • http://sanarina-coaching.de/ckfinder/userfiles/files/kibubudaxupagapixepujelod.pdfIn PDF document text
  • http://queenart.kr/userData/board/file/640907007.pdfIn PDF document text
  • https://ans5680.preneed91.com/upload/files/mewisodu.pdfIn PDF document text
  • http://dbcasagayathottam.org/assets/uploads/cms_images/files/757326322.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=cid+latest+episodePDF 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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