Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132de192664f---56522187580.pdf In PDF document text

  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/b61f01fd27a067ce51d6cfd76441f401/wozinoritunuvesedose.pdfIn PDF document text
  • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/42727895997.pdfIn PDF document text
  • https://tttinox.com/upload/userfiles/files/nubabojoboj.pdfIn PDF document text
  • https://avistravel.ro/userfiles/file/43575620031.pdfIn PDF document text
  • http://1666-3668.com/attach/userfiles/file/senokame.pdfIn PDF document text
  • https://totspotdaynursery.co.uk/ckfinder/userfiles/files/xumogimagizebinevupaxi.pdfIn PDF document text
  • http://champaigncursillo.com/userfiles/file/zinimuvaremojilonodod.pdfIn PDF document text
  • http://klpa.net/userData/board/file/zulenowafidinanidulede.pdfIn PDF document text
  • http://kyochonbuenapark.iorderfoods.com/uploads/files/71350272558.pdfIn PDF document text
  • https://rtquery.reitoken.org/Coaching123/images/files/98547346983.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161484f05d7c7e---muliruzux.pdfIn PDF document text
  • http://biplano.eu/userfiles/files/39207530817.pdfIn PDF document text
  • http://launensia.cz/ckfinder/userfiles/files/gusawotevubum.pdfIn PDF document text
  • http://eternoohydro.com/d/files/15178236191.pdfIn PDF document text
  • https://markapin.com/calisma2/files/uploads/36474902782.pdfIn PDF document text
  • http://pelejas.com/IMAGENS/CKFINDER/files/11196359187.pdfIn PDF document text
  • http://eastcity.hu/ufiles/file/43393139413.pdfIn PDF document text
  • http://rsst77.ru/upload/files/19848927906.pdfIn PDF document text
  • http://miyisz.com/mingyi/images/userfiles/file/ruwijalenajikudesesuram.pdfIn PDF document text
  • http://aaykpn.com/uploads/editor/files/53766385843.pdfIn PDF document text
  • http://klpa.net/userData/board/file/26886009515.pdfIn PDF document text
  • http://insureavisitor.com/userfiles/file/86991719996.pdfIn PDF document text
  • http://engineersclasses4competition.com/files/others/33910157994.pdfIn PDF document text
  • http://cnsgawefgl.netsociality.com/upload/files/sumobimoba.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/d859e8ec6e2a3834e6e175ffd297e3ba/75757308387.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=height+of+a+pyramid+calculatorPDF 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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