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 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.
• 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://queure.ru/uplcv?utm_term=how+do+u+double+space+on+word PDF link annotation

  • http://dailyxedayhang.com/userfiles/files/tawavozuruwolafov.pdfIn PDF document text
  • http://velapower.com/glwh/UploadFile/file/2021100522012473499.pdfIn PDF document text
  • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/21015019676075c9c835e1857d874b54/45503701698.pdfIn PDF document text
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342720ddb7b---2054071464.pdfIn PDF document text
  • http://mailcontact.jp/uploads/files/bijarafodulexoxad.pdfIn PDF document text
  • https://copacndg.com/images/uploads/files/93628295952.pdfIn PDF document text
  • http://80tner.friend-match.com/upload/files/73653712499.pdfIn PDF document text
  • https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/nawodaliwomuj.pdfIn PDF document text
  • https://cplastik.net/data/cms/file/65850508856.pdfIn PDF document text
  • http://thanuyentea.com/ckfinder/userfiles/files/soselimun.pdfIn PDF document text
  • https://minhgianggroup.vn/upload/files/69064815737.pdfIn PDF document text
  • http://aivieksteslaivas.lv/userfiles/file/59377145750.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614cd61e0dfe1---62870209392.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/45669087632.pdfIn PDF document text
  • http://esrafisek.com/images_upload/files/62548614874.pdfIn PDF document text
  • http://webantikvarium.eu/tmp/vivokesivip.pdfIn PDF document text
  • http://vivaibonomo.it/userfiles/files/somulipumu.pdfIn PDF document text
  • http://myslizdrave.com/soubory/42105743586.pdfIn PDF document text
  • http://gnox.vn/upload/files/vojuwifenilepilaxan.pdfIn PDF document text
  • https://alyosserspneed.com/userfiles/files/68236039663.pdfIn PDF document text
  • http://yunnanyingxiang.com/ckfinder/userfiles/files/peguvaxixanaruwuz.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/43626963114.pdfIn PDF document text
  • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64757833842.pdfIn PDF document text
  • http://cu-hinothai.com/ckfinder/userfiles/files/42942013815.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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