Malicious PDF — malware analysis report

Heuristics 6

• 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://studiodabo.eu/userfiles/files/71253686638.pdf In PDF document text

  • http://haphadoor.com/upload/files/nutujebapoxa.pdfIn PDF document text
  • http://adaviestransportltd.com/userfiles/file/nowalogumupabudulale.pdfIn PDF document text
  • https://toptenstudy.com/upload/files/BodyFile__60B84B68E152C.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a39f2a8153b---tifirikazira.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f59852632b---kikinugozemak.pdfIn PDF document text
  • https://genericdiabeticteststrips.com/userfiles/files/famarapo.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/a1d40f342f49a452b6a9e6a92d773cd2/pagulajefiwuxefowodeme.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/80gngi733k19fqf4512edbsnn1/munovaludepamotexuvat.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0c4e314ad---negefepobisimunumil.pdfIn PDF document text
  • http://stagelight.pl/userfiles/files/polobasefivefi.pdfIn PDF document text
  • http://osmed.cz/app/webroot/files/files/sufavotiwinavuxupurunigep.pdfIn PDF document text
  • https://securityguardsupply.org/php/uploads/file/72230690779.pdfIn PDF document text
  • http://kpdb.org/userfiles/files/tulusadolivagexoxep.pdfIn PDF document text
  • http://kimwendelldesign.com/ckfinder/userfiles/files/pukufagasezilofo.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609870e8a473a---fobolibaz.pdfIn PDF document text
  • http://arredamentoambienti.it/img/file/27905235049.pdfIn PDF document text
  • http://firanywiktoria.pl/uploads/editor/file/munasanunu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/if1nsetjfpehl859jhls2ao9t1/7879051734.pdfIn PDF document text
  • http://accessprecision.com/userfiles/file/82125577002.pdfIn PDF document text
  • https://drinkpoint.com/uploads/files/rizenetozexebir.pdfIn PDF document text
  • http://dentali.cz/files/files/puzajorutavosiwugaxo.pdfIn PDF document text
  • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a5fffd7ecf5---zegodaruvenakine.pdfIn PDF document text
  • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c1c02c1ee---mowoleduzuvefarufaten.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=what+are+the+benefits+of+chanting+lalitha+sahasranamam+everydayPDF 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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