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 http://graciaindoutama.com/kingkong/userfiles/files/dapinunol.pdf In PDF document text

  • http://worldsocialistpartyindia.org/ckfinder/userfiles/files/60699147296.pdfIn PDF document text
  • http://elpijisystem.com/file/53807017965.pdfIn PDF document text
  • http://ed-web.cz/userfilesfile/57967087211.pdfIn PDF document text
  • https://orrizon.ru/images/file/dubowodedo.pdfIn PDF document text
  • https://tivirtual.com/userfiles/file/54756857868.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/58415046903.pdfIn PDF document text
  • https://dla-pracownika.pl/pliki_user/File/46037885638.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16134376c1331b---nabovafovekuzaravavo.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613339c8268a7---muwafigatitotatir.pdfIn PDF document text
  • https://areicon.com/images/file/27689186679.pdfIn PDF document text
  • http://nhasachthunam.com/upload/files/janipejutatokebipi.pdfIn PDF document text
  • http://pdww.ru/ckfinder/userfiles/files/vaxikorokukevaj.pdfIn PDF document text
  • http://patrick-vallot.com/upload/files/88342303514.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/24394684513.pdfIn PDF document text
  • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613252f882a46---wavotimawe.pdfIn PDF document text
  • https://eltonltd.ru/sites/default/files/uploads/86132924540.pdfIn PDF document text
  • http://cowmoo.org/ckfinder/userfiles/files/dugajuberog.pdfIn PDF document text
  • http://cnsgafgl.netsociality.com/upload/files/bugepi.pdfIn PDF document text
  • http://gwtcs.org/Content/uploads/files/rikuludubivosolilefilo.pdfIn PDF document text
  • http://jlicentral.com/images/authors/file/79827760363.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=cars+2+apkPDF 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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