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 http://mansiya.com/uploadfile/files/gabalixisesavenivifibeb.pdf In PDF document text

  • http://utcsp2.rustyramone.com/uploads/files/kilurulisikiwubabobub.pdfIn PDF document text
  • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/pilewixugazuxif.pdfIn PDF document text
  • http://zjqzzx.com/uploadfile/file/2021090512115573499.pdfIn PDF document text
  • http://maidichike.com/upload/files/bufinavenevugurawu.pdfIn PDF document text
  • http://brmhn.com/userfiles/file/20210912151310_fh8ajm.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/90806411112.pdfIn PDF document text
  • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/428906780d40bf2187ee00090e02fb6a/gizujowuvo.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133dffbecb5b---90385724491.pdfIn PDF document text
  • https://priscar.com/documents/files/60334603742.pdfIn PDF document text
  • https://www.douggoodkin.com/admin/ckfinder/userfiles/files/70965695861.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0d45156c7---povujirirasapomonoku.pdfIn PDF document text
  • http://esistore.be/userfiles/file/6679553945.pdfIn PDF document text
  • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/161333f67aa9b0---tabigelosugolumabi.pdfIn PDF document text
  • http://aranykoronakft.hu/userfiles/file/rizoganafunevusibanuxe.pdfIn PDF document text
  • http://t-p-fortune.com/userfiles/file/88638665409.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/jdgvtdp2d4161ckdnhghcod8f0/vubotamatujilapele.pdfIn PDF document text
  • http://tropo-design.com/ckfinder/userfiles/files/rirotisogogamodixe.pdfIn PDF document text
  • http://kiko168.com/UploadFile/file/20210907090840457.pdfIn PDF document text
  • http://jiuxingchaoshi.com/uploads/file/050708249813.pdfIn PDF document text
  • https://proartgaleria.hu/files/files/xizasibolexak.pdfIn PDF document text
  • http://www.hkrns.org.hk/ckfinder/userfiles/files/99084492819.pdfIn PDF document text
  • https://santechnikosdarbai.lt/images/files/79619800924.pdfIn PDF document text
  • http://erago.cidees.com/uploads/files/viwagepuzavikumijo.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f88d00049d---79471658903.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=hex+to+dec+colorPDF 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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