Malicious PDF — malware analysis report

Heuristics 5

• 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://oniceh.ru/uplcv?utm_term=free+business+plan+books+pdf PDF link annotation

  • http://labcoop-jsc.com/wp-content/plugins/super-forms/uploads/php/files/87hjpj7svmpbablihtljshlcs9/76744186166.pdfIn PDF document text
  • http://alda.pl/ckfinder/userfiles/files/85582692155.pdfIn PDF document text
  • https://wickedcheesy.com/images/file/vilabogodojukesigebaja.pdfIn PDF document text
  • http://www.jobibon.com/admin/userfiles/file/71718577902.pdfIn PDF document text
  • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/le70vhngqurtqu5v0ui31nm1tn/82624258162.pdfIn PDF document text
  • http://nappsa.org/userfiles/file/10663026309.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160fecc74e0b45---42477632989.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/f1ff5785945209de3d2b328beacea221/sibotugikevozuj.pdfIn PDF document text
  • https://tinnituskozpont.hu/files/sokenuwemejarebolizazuma.pdfIn PDF document text
  • http://china-zzld.com/uploadfile/file///2021060518573473.pdfIn PDF document text
  • http://phanvienphianam.com/uploads/userfiles/file/jujuzekotojagoga.pdfIn PDF document text
  • http://assushop.com/userfiles/assushop.com/file/17198689086.pdfIn PDF document text
  • http://ebslang.net/_UploadFile/Images/file/gawelopexanivezuwimil.pdfIn PDF document text
  • https://netpage.info/userfiles/file/79693130348.pdfIn PDF document text
  • https://tiguan-wiki.ru/file/pujed.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9b26ddfcbf4ad71ba4592ff3c8a5ec6e/delukasepivobodokure.pdfIn PDF document text
  • https://projetounificado.com/uploads/files/radovofeb.pdfIn PDF document text
  • https://parklanehotel.asia/userfiles/file/raparuxawetebasafevup.pdfIn PDF document text
  • http://aa-nusd.jp/dosogolurepidamewoku.pdfIn PDF document text
  • https://dogathermalhotel.com/resimler/files/27618225851.pdfIn PDF document text
  • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/bf78a10eee4fa95855d6fb2aa1fde2c6/19157861508.pdfIn PDF document text
  • http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/petefinobajidividaveku.pdfIn PDF document text
  • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f83bb430cae---96221947083.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160caf498abfa7---fenusutakejezobumifale.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/n4186to5pak11smu3km0720lkp/76662645600.pdfIn PDF document text
  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/fccd3e93849b80a29671f7444ac02b3c/repopibukotolifisudo.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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