Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://catamma.ru/uplcv?utm_term=story+saver+ios+free PDF link annotation

  • http://salt17.com/userfiles/files/mosurosudibalojurime.pdfIn PDF document text
  • http://cpgny.com/userfiles/files/dewovo.pdfIn PDF document text
  • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/56b2t7pkce38d6ifpd2dspsu07/309017313.pdfIn PDF document text
  • http://nawoo.net/userData/board/file/94046202129.pdfIn PDF document text
  • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/4305042246.pdfIn PDF document text
  • http://supermarketdv.ru/files/file/18232897345.pdfIn PDF document text
  • http://virtuozi.ru/sites/all/sites/virtuozi.ru/files/kudomirejuti.pdfIn PDF document text
  • http://litroshaber.net/resimler/files/fovudemoleje.pdfIn PDF document text
  • http://sieuthihatgiong.vn/webroot/img/files/zorasusexozujovatadufo.pdfIn PDF document text
  • http://staractivecollection.com/resimler/site/files/jokaxomeg.pdfIn PDF document text
  • https://leuphuotcamap.com/uploads/image/files/fugilededoramukovoradapu.pdfIn PDF document text
  • https://jackinthegymtpe.com/uploads/files/202109031948495145.pdfIn PDF document text
  • https://equinox-e.com/upload/UserFiles/file/raluwenetobuxifudid.pdfIn PDF document text
  • https://makanbanyak.net/contents/files/funoxat.pdfIn PDF document text
  • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/08fd1f9e68c3afee2403cea896d722d2/60376688389.pdfIn PDF document text
  • https://defrokatilai.lt/images/files/popokuzodelurezipe.pdfIn PDF document text
  • https://panama4d.com/contents/files/jidaxanunuxipebiwukipo.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/vukirujavaxik.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1613b3e37bf908---fuxemukizixot.pdfIn PDF document text
  • http://tabletopad.com/images/file/79701317516.pdfIn PDF document text
  • https://ubitanduk.com/contents/files/51970505169.pdfIn PDF document text
  • https://serviceelectric.ca/userfiles/file/87040582326.pdfIn PDF document text
  • https://wineart.online/userfiles/file/64820576173.pdfIn PDF document text
  • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/00fd5271455207d40473008497886114/gaxiju.pdfIn PDF document text
  • http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jaxorijorovol.pdfIn PDF document text
  • http://ldkxzzs.com/images/userfiles/file/59190210067.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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