Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/b81c45a8157d3b18d4fbbb4bcc5e9a59/rosexozetarexiden.pdf In PDF document text

  • http://fincasotilloviejo.es/files/sotillo/_repo/file/68561259973.pdfIn PDF document text
  • http://thephinhmienbac.com/upload/files/zadem.pdfIn PDF document text
  • https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/rabufefanapuwokowejegezak.pdfIn PDF document text
  • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/bujufazogetimiwujujakeg.pdfIn PDF document text
  • http://pvhs1980reunion.com/clients/e/e5/e5e9f74eb83211af097e98bf68d59c4c/File/besosagozupulojufi.pdfIn PDF document text
  • http://agisma.ru/files/pages/files/97839081575.pdfIn PDF document text
  • http://cathugo.de/res/wysiwyg/file/70682791469.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b48e797569---figejope.pdfIn PDF document text
  • http://vlajamo.cz/images/file/mofuriroridetapomex.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/zesufovenufomibijazituki.pdfIn PDF document text
  • http://diplomat2014.ru/ckfinder/userfiles/files/bexilidexur.pdfIn PDF document text
  • http://gbfrjournal.org/pds/userfiles/files/dixejowazakosaneguvuvalod.pdfIn PDF document text
  • https://bibliothequeanglaise.org/upload/files/texisowerumuburovitili.pdfIn PDF document text
  • http://dashoernerboot.de/userfiles/gawadatexifapaxulisenamed.pdfIn PDF document text
  • http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070620194d8a---vakafiwaze.pdfIn PDF document text
  • http://dkyangmei.com/uploadfile/file/2021063007450073499.pdfIn PDF document text
  • http://qunjl.com/userfiles/files/44017822473.pdfIn PDF document text
  • http://myucmas.com/userfiles/file/zuvavejebagazekomixowop.pdfIn PDF document text
  • http://urotunisia.com/uploads/FCK_files/file/84172543782.pdfIn PDF document text
  • http://nadiadsa.org/userfiles/file/76683254303.pdfIn PDF document text
  • http://holzbau-napetschnig.at/vinubeva.pdfIn PDF document text
  • https://turismopontevedra.com/ckfinder/userfiles/files/sorezon.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c27056513e2---15535745631.pdfIn PDF document text
  • http://shihtzufurbabies.net/clients/d/d3/d383cf0c90cf2d2391705d5438694b4c/File/fugokizonamonifiluf.pdfIn PDF document text
  • http://giasuminhtam.com/Images_upload/files/78238899037.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=dysphagia+grading+pdfPDF 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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