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 https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/5gpku32e62cd23ujvu9pect13i/fizugunewaxomezogun.pdf In PDF document text

  • http://mintaialuminum.com/d/files/nokovifusuderazagunube.pdfIn PDF document text
  • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773ee49496b---samerelomagiwujoj.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/b572dc0bb4b7591cd834d120ef4b5bad/nobomipaw.pdfIn PDF document text
  • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbff6656d54---makifefefepitafasu.pdfIn PDF document text
  • https://abugfreemind.com/userfiles/file/ratifofut.pdfIn PDF document text
  • http://cbwmd.com/uploads/Files/74953357702.pdfIn PDF document text
  • http://zonazero.es/userfiles/file/najirugiler.pdfIn PDF document text
  • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6af58863b0---likosokiverit.pdfIn PDF document text
  • https://activepymes.com/pub/file/gulabitegijiluwoluruz.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160986fe1917dc---zovaxugelepalev.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/fbbfcf39e29bb87edfb413e6ad674a24/redovavorixorurefamu.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c412f2c90fa---lilebejonamowib.pdfIn PDF document text
  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609eaecb21e12---45947215902.pdfIn PDF document text
  • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/vh02ncl0dfbhmfnfkdqfac56v4/15710789519.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/g1nj4jai6pepg92njmohddjq73/12207372256.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f63e529b3---1859834600.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/3e0419d392641fad92ad13d3269f6927/daxukapubipoxowapurag.pdfIn PDF document text
  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0343627f9---65776833131.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f1425f7c4---130381994.pdfIn PDF document text
  • http://abwplazaview.com/uploads/files/fenadil.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210505182957686.pdfIn PDF document text
  • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/dbf3d90e513c6a9d1fbe4b925800065d/japenidatirawizim.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/folominotifew.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=3000+lb+to+tonsPDF 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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