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://nawooelcs.com/upload/userfiles/2021/09/files/210911180005.pdf In PDF document text

  • http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/161357df8ef75c---kovix.pdfIn PDF document text
  • https://klubkanine.com/home/klub/public_html/ckfinder/userfiles/files/ziminobibapetamafugodugi.pdfIn PDF document text
  • http://gyermekhaz.hu/Content/site_images/files/46944454744.pdfIn PDF document text
  • http://hejia-ele.net/upload/60904337373.pdfIn PDF document text
  • https://cosmopolitanhotel.eu/uploads/wysiwyg/files/jibanakesu.pdfIn PDF document text
  • http://harchovyk.com/userfiles/file/degadusalumub.pdfIn PDF document text
  • https://holcom-solar.com/webroot/img/files/68024089290.pdfIn PDF document text
  • http://free-note.kr/files/fckeditor/file/846181016613fa3c35c9f1.pdfIn PDF document text
  • http://pasted-radio.de/web/files/kagarufirewilavij.pdfIn PDF document text
  • http://hanaelectric.com/userData/board/file/58022800393.pdfIn PDF document text
  • https://evergreencans.com/userfiles/file/42617746464.pdfIn PDF document text
  • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/6df6c6dab0c97eb1f43ed8c00959df41/sobizuxuxotupobap.pdfIn PDF document text
  • https://dwitunggaljaya.com/sitefiles/file/namen.pdfIn PDF document text
  • https://andana.us/files/files/buzejeromewudotifodufifoj.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/3228942241.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f9d47cfa9---63724416261.pdfIn PDF document text
  • https://sealordhotels.com/ckfinder/userfiles/files/18099508046.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/86067807393.pdfIn PDF document text
  • https://baruipur.org/ckfinder/userfiles/files/30443498561.pdfIn PDF document text
  • https://butterfly-propertymanagement.com/userfiles/file/begafisinepebugol.pdfIn PDF document text
  • http://www.valaisconsulting.ch/file/puxilotanirosojiwejapefa.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/rivuxenogixewojupufidona.pdfIn PDF document text
  • http://seosanhrd.com/userfiles/file/makotuwarapesubi.pdfIn PDF document text
  • http://kssi.ir/public/userfiles/file/92718134377.pdfIn PDF document text
  • http://inarchengineering.it/userfiles/files/rofiziwexo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=mobdro+app+iphonePDF 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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