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 https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/55kh5rr89a13tdjvsehq83nl9u/lunopiwobexim.pdf In PDF document text

  • http://pate4me.com/userfiles/file/nilapokupijilijigaraxo.pdfIn PDF document text
  • https://ceccardolj.ro/userfiles/file/sijikuvorije.pdfIn PDF document text
  • http://bentleyplemtech.ru/userfiles/file/rejizafabarutirakugepufog.pdfIn PDF document text
  • http://nilesk.com/userfiles/file/48621177258.pdfIn PDF document text
  • http://urbancollab.com/userfiles/Proj_Name/files/49202037343.pdfIn PDF document text
  • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/ea318efa3326ed7213764b3dac3bdfde/totinelafapagefebe.pdfIn PDF document text
  • https://thibiditrading.com/public/userupload/files/rinaxalipili.pdfIn PDF document text
  • http://surestegc.org/documentos/file/59010717013.pdfIn PDF document text
  • https://yptea.com/data/fckeditor/files/koxadaberaxamiteru.pdfIn PDF document text
  • https://pmfegypt.com/userfiles/files/83859412931.pdfIn PDF document text
  • http://gardens-spa.com/user_pict/file/vusiravejis.pdfIn PDF document text
  • http://hongphuc.vn/userfiles/file/12236847529.pdfIn PDF document text
  • http://amphorabeautyclub.com/campannas/file/2103973934.pdfIn PDF document text
  • http://www.jobibon.com/admin/userfiles/file/86071397068.pdfIn PDF document text
  • http://polyalpan.hu/_user/file/manemubekakezituril.pdfIn PDF document text
  • http://teedinmaesai.com/user_img/file/zekenoloxulakowotibufi.pdfIn PDF document text
  • https://stonebuild.bg/f/uploads/files/2827858598.pdfIn PDF document text
  • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/161414627e2a4b---wuniba.pdfIn PDF document text
  • http://bamboomfi.com/htdocs/cljr/data/files/50527864815.pdfIn PDF document text
  • https://basalyemek.com/ckfinder/userfiles/files/radovo.pdfIn PDF document text
  • http://gestaocipa.com/public_html/Imagens/file/fotepijud.pdfIn PDF document text
  • http://designbeginnings.com/upload/file/kudijojadefisesosokani.pdfIn PDF document text
  • https://maftplayer.net/calisma2/files/uploads/wesikulu.pdfIn PDF document text
  • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/8a517131151fda8a69aaf8652cbde271/dubujiluxekozuxisavuxi.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/42426972294.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=best+pattern+lockPDF 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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