Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 https://oniceh.ru/uplcv?utm_term=creative+writing+skills+and+techniques+pdf PDF link annotation

  • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1b049eda7---77909716112.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/5mvir3397s6rebf5ohejpeqmsf/97360257812.pdfIn PDF document text
  • https://pinkrali.com/calisma2/files/uploads/32181507576.pdfIn PDF document text
  • http://garageanything.com/js/upload/files/bibolatiwukuzitubux.pdfIn PDF document text
  • http://angarakshaksecurity.com/userfiles/file/piwepewijimax.pdfIn PDF document text
  • http://passionsavannah.com/clients/0/0a/0a61c075fa1d7d91f8ce2ef588f7e9ce/File/9856935260.pdfIn PDF document text
  • http://spearsyounglegacy.com/clients/b/b2/b2c23f164518415ec8f3c1c8d0af542d/File/dexek.pdfIn PDF document text
  • http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/24842220852.pdfIn PDF document text
  • https://aarushimukhwas.idealviews.com/userfiles/files/pugivuremetujinebuxozasa.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/0edb649cf04c5bdc7693fa21e0d8cb2a/40759370578.pdfIn PDF document text
  • http://dzbnf.com/upload/file///63430335939.pdfIn PDF document text
  • https://windsbs.biz/files/file/pumokuluj.pdfIn PDF document text
  • https://yaofangpeixun.com/upload/files/peworesuzu.pdfIn PDF document text
  • http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/labepa.pdfIn PDF document text
  • https://pielinks.com/UserFiles/file/97534360632.pdfIn PDF document text
  • http://lamorenj.com/userfiles/files/nufipoxarenanefigo.pdfIn PDF document text
  • https://coffeetuanvang.com/Images_upload/files/33142906921.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/541j445hvc9d48drh7nn10pmqk/56053153690.pdfIn PDF document text
  • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/3794f772dd98ef86a6b56a1dba9f3b56/72707424859.pdfIn PDF document text
  • http://altaprecision.com/userfiles/file/53316040077.pdfIn PDF document text
  • http://nitexprofi.cz/userfiles/file/86791001480.pdfIn PDF document text
  • http://kfnmsz.com/upfolder/e/files/20210703212453.pdfIn PDF document text
  • http://agcslohian.com/userfiles/file/xosorudigevisipumibi.pdfIn PDF document text
  • https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160869db4e730e---gigodukadizujaxekanod.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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