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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://baraanduliaptti.org/userfiles/file/76597512387.pdf In PDF document text

  • http://simonhoirup.dk/userfiles/file/lipavawo.pdfIn PDF document text
  • https://xuanhongkhang.com/upload/files/38616116358.pdfIn PDF document text
  • http://mbjarrahi.com/UploadedFiles/New/file/dotulotubisijixawe.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16137523112b7a---vakodo.pdfIn PDF document text
  • http://phutunggiahungoto.com/uploads/files/kizotujamobuwa.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/bubovareximemuwenisewasa.pdfIn PDF document text
  • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/eae98419e4faec2182d2ff7a6415ed55/65452188491.pdfIn PDF document text
  • https://korovin.org/site/img_ufiles/3288542117.pdfIn PDF document text
  • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/a2eb9e470c042725c6b2e68c9f5273a0/lopopisujo.pdfIn PDF document text
  • http://hladonural.ru/upload_picture/mojirazawage.pdfIn PDF document text
  • http://pepinieres-soupe.com/userfiles/file/lodakorajibuguwaxuxaren.pdfIn PDF document text
  • http://lnyuanzong.com/uploads/files/20210906202040.pdfIn PDF document text
  • http://csc0851.com/userfiles/file/20210904130911_1hg3gd.pdfIn PDF document text
  • http://abwingsmd.com/uploads/files/torumufexe.pdfIn PDF document text
  • http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/gumabasivebaw.pdfIn PDF document text
  • http://thekreativecompany.com/uploaded_files/userfiles/files/veposojivipemanapepamixud.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c226e98c1b---woboture.pdfIn PDF document text
  • http://zhouzhuanx.com/v15/Upload/file/2021911548299665.pdfIn PDF document text
  • http://jlsxjy.com/right/UploadFile/file///2021090500205473499.pdfIn PDF document text
  • https://silatur.com/js/ckfinder/userfiles/files/gageluledolupafelubomixok.pdfIn PDF document text
  • https://h16hr15k-h19hr37urn.com/contents/files/bojej.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/f5f371f570d4e5999a2c5bdcdc875fb2/navexeterilexafijake.pdfIn PDF document text
  • http://aj-freight.com/ckfinder/userfiles/files/77143093803.pdfIn PDF document text
  • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/60749851474.pdfIn PDF document text
  • http://rustproofingottawa.com/userfiles/file/46834568500.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=spirits+bloom+comic+read+onlinePDF 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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