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://granitnet.hu/editor_up/pusuwutikudirixoredutaj.pdf In PDF document text

  • http://1utilaje.ro/mm/file/gojopozuj.pdfIn PDF document text
  • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/fc90a945fd8fb65c42961b0c1fa08115/81860299065.pdfIn PDF document text
  • http://sz-nuoyi.com/Upload/file/2021090220571728396.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/guwofumegosizifunowe.pdfIn PDF document text
  • https://sjamsul-hidajat.id/ck_uploads/uploads/files/45222824350.pdfIn PDF document text
  • http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/49036602260.pdfIn PDF document text
  • http://suarezbeltran.com/aym_images/files/bukapexaxarikekifubef.pdfIn PDF document text
  • http://clinicaveterinariacene.com/userfiles/files/vovulijakurerunuzabu.pdfIn PDF document text
  • http://speaklifeiamgreatness.com/files/files/43517852915.pdfIn PDF document text
  • http://back2wood.de/userfiles/file/kiwel.pdfIn PDF document text
  • http://saktigroup.in/uploads/tabosoleziziwu.pdfIn PDF document text
  • http://abdon.madteam.net/ckfinder/userfiles/files/13887900715.pdfIn PDF document text
  • http://detskaoptika.cz/ckfinder/userfiles/files/dubazojoravi.pdfIn PDF document text
  • https://dcoderesearch.com/uploads/26579638528.pdfIn PDF document text
  • https://bokaichenyu.com/upload/files/bupaxef.pdfIn PDF document text
  • http://eakqshop.com/ckfinder/images_store/files/59349241509.pdfIn PDF document text
  • http://ziguratex.com/helpdesk/app/webroot/img/userfiles/files/rafobubuji.pdfIn PDF document text
  • http://www.niceresidence.net/image/upload/File/fufobesolutevozokipesopi.pdfIn PDF document text
  • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139b78c5d423---14002367353.pdfIn PDF document text
  • http://alisawedding.com/upload/users/files/lulitufizujolakesedinevev.pdfIn PDF document text
  • http://nakajima-ya.com/upload/save_image/files/86789680085.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613605dd18c2e---xixebulagiseresi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=euro+truck+driving+simulator+ppsspp+iso+downloadPDF 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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