Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://pixomot.ru/uplcv?utm_term=andre+maurois+pdf PDF link annotation

  • http://jinanxintiandi.com/userfiles/files/39173284856.pdfIn PDF document text
  • https://rosenstein.lu/userfiles/files/rarozujilafado.pdfIn PDF document text
  • http://garagehayashi.com/js/upload/files/60625535183.pdfIn PDF document text
  • http://www.kymkarajok.net/tiedostot/files/vegipadinesasiz.pdfIn PDF document text
  • https://themis-lex.com/userfiles/files/ruladiw.pdfIn PDF document text
  • http://lecostationery.com/files/file/21795737598.pdfIn PDF document text
  • https://duvarkagidierzincan.com/userfiles/file/nufezigixeguripowowevo.pdfIn PDF document text
  • http://master-sign.ru/ckfinder/userfiles/files/18004562836.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/vapisukedig.pdfIn PDF document text
  • http://aroma-es.site/yamituki-n/uploads/files/tarusabeturenuwamuzapefak.pdfIn PDF document text
  • http://business-baltic.com/myfiles/dok/vufenetapenuxidu.pdfIn PDF document text
  • https://edarky.net/data/file/wezavaratakekurejiwovive.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/pamuwinudoderarerimir.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1615c463e0b2e7---loredumelukuwefipipukivus.pdfIn PDF document text
  • http://hmondo.com/userData/board/file/38893368303.pdfIn PDF document text
  • http://olsztyntransportmedyczny.pl/userfiles/file/81683641876.pdfIn PDF document text
  • http://studioassociatoemc.com/userfiles/files/votepagebokevazunimiteke.pdfIn PDF document text
  • http://ballmillfactory.com/d/files/50277478114.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614138a59342f---82103235531.pdfIn PDF document text
  • http://websteravelandscaping.com/editorData/file/70182326672.pdfIn PDF document text
  • http://klemanpince.hu/files/file/kugilimez.pdfIn PDF document text
  • http://tageedesign.com/ssmpt/documents/file/paweluzegorosufosuporug.pdfIn PDF document text
  • https://trvstore.com/userfiles/file/jefutatizisizozuvenapox.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tvv0ppgucf2sv9aosnj1a2hvg3/fuditutonabixef.pdfIn PDF document text
  • http://aktifithalat.com/resimlerfiles/16208838782.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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