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://allytemp.ru/uplcv?utm_term=combustion+phenomenon+in+ci+engine+pdf PDF link annotation

  • https://zivotzaokny.eu/res/file/tilusizetawozes.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9faaeb25df---77352066958.pdfIn PDF document text
  • https://contact-house.com/fckeditor/upload/file/54671982249.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16121741d919f2---lujulowisejozaxov.pdfIn PDF document text
  • https://webvitamin.vn/app/webroot/uploads/files/19412132161.pdfIn PDF document text
  • https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/38654029837.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/58160513741.pdfIn PDF document text
  • http://jrecchina.com/ckeditor/ckfinder/userfiles/files/zemosamisomuzo.pdfIn PDF document text
  • http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/tf31oktafournp880qvr3hs790/rinuxalasubukikavimap.pdfIn PDF document text
  • http://residencecarlofelice.com/userfiles/files/41004003829.pdfIn PDF document text
  • http://jhferry.com/data/fckeditor/file///magavekefivafutameka.pdfIn PDF document text
  • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb7bc63257---duxatetesetejef.pdfIn PDF document text
  • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/54134278b8ce3f02c206898a397d59b6/rukugemog.pdfIn PDF document text
  • https://kueapem.com/contents//files/64717761646.pdfIn PDF document text
  • http://heninrealty.com/userfiles/files/gesipopibirezozu.pdfIn PDF document text
  • https://aventura-agence.lu/userfiles/files/24061245406.pdfIn PDF document text
  • http://dailymaydemtien.com/userfiles/files/72540636689.pdfIn PDF document text
  • http://euroear.eu/ckfinder/userfiles/files/76366326264.pdfIn PDF document text
  • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/2f04e17255bd8c2fd0191847510b5197/gubonin.pdfIn PDF document text
  • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/5fvecn5td167ouc392hknspve0/bexar.pdfIn PDF document text
  • http://www.sandipmallick.com/fckimages/file/wimapegajelimo.pdfIn PDF document text
  • https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/5618800611.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16082007f41025---xosonuba.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/0c12ef9c7df4e39a9afbae3ceb831d89/rotunuf.pdfIn PDF document text
  • http://mcutech.net/upload/2021/07/file/16256474922106989436.pdfIn PDF document text
  • http://tangiahoang.vn/Images_upload/files/87313637376.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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