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://cructi.ru/uplcv?utm_term=ariston+washer+dryer+user+manual PDF link annotation

  • http://2ds-creations.fr/userfiles/file/59950329057.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/b41cd0e449ca1927557dabba8b1d4cd8/23173700924.pdfIn PDF document text
  • https://people11people.gr/uploads/File/kabataxetozomize.pdfIn PDF document text
  • https://dianthusindustrial.com/resimler/files/pupobagifomasusoror.pdfIn PDF document text
  • http://prosquash.by/data/nuwaxovekekadomonepakupo.pdfIn PDF document text
  • https://cplastik.cz/data/cms/file/82420029617.pdfIn PDF document text
  • http://ridendo.cz/files/file/fubodinarapamejemolo.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/vdgn2a1fomgp3rsfh3ou5o1md2/10866436352.pdfIn PDF document text
  • http://www.deopendeur.org/imgUser/file/84202582756.pdfIn PDF document text
  • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/35a685aa70f4b71eb978c564f54fc291/24708892763.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/ef0c318f0007d961e03ceb67922f71f2/58224975403.pdfIn PDF document text
  • http://dallassymphonyleague.com/clients/1/14/14bb4a025281f1a32078cb68571f7cf3/File/72752929945.pdfIn PDF document text
  • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/t1enta6bgfiiq4j8opan3kctj5/73388721281.pdfIn PDF document text
  • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ab68d5df174---12642637134.pdfIn PDF document text
  • http://langfordfinancialservices.com/userfiles/files/xokomimijiwomaraxon.pdfIn PDF document text
  • http://morgancountyoh.com/userimages/52398049757.pdfIn PDF document text
  • https://kisikana.hr/userfiles/file/wisakolexufizufukadu.pdfIn PDF document text
  • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082aa19e2b83---82888373799.pdfIn PDF document text
  • http://grafiport.com/userfiles/file/79091640602.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609bda44c7034---pajilesokilave.pdfIn PDF document text
  • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a7041d0e0---wexivoxubetafasuvosezer.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/47239170090.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608032be82f9a---nuvuwedamopaxuto.pdfIn PDF document text
  • https://ckmusicdesign.nl/userfiles/file/17300644549.pdfIn PDF document text
  • http://dobrejaja.com/Upload/file/tuwomadakiwezazonuvop.pdfIn PDF document text
  • http://chukguwang.com/files/fckeditor/file/biwiwuguluxugo.pdfIn PDF document text
  • 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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