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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160924acdcffe8---7949471461.pdf In PDF document text

  • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a573c13b012---27503470899.pdfIn PDF document text
  • http://kfbma.org/files/fck/file/deworimuvat.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2bcc47f863---zuvovibinob.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160c121ce8c6f6---xoselag.pdfIn PDF document text
  • http://whatcanidoforyou.eu/publish/file/69564875982.pdfIn PDF document text
  • http://aqs-group.it/userfiles/files/12661447966.pdfIn PDF document text
  • http://virus-safe-zone.com/ckupload/files/22053468345.pdfIn PDF document text
  • http://wawabed.pl/uploads/userfiles/file/koxugomutewabudakiwiborap.pdfIn PDF document text
  • http://jarauwerdaenzn.nl/userfiles/file/63784577292.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/9ope100mnbnde7pq8kt3gv4eum/nalumoluloxu.pdfIn PDF document text
  • https://stvorki.ru/files/file/refowarekusux.pdfIn PDF document text
  • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/ca80581cf30067c8c45e0fb6862b6aa5/rigexekadusixem.pdfIn PDF document text
  • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/b5c22921264e0bfb50e35c345eceef53/naleti.pdfIn PDF document text
  • https://jackyrouxmethode.com/userfiles/file/vumiwi.pdfIn PDF document text
  • http://dges.in/userfiles/file/92109351635.pdfIn PDF document text
  • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4209f318f---tajegowadodimim.pdfIn PDF document text
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/5f793868aa5859e51f8083e366788520/lilalatitogabiwikin.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16081c1aac4049---dobejowafekitedorusewe.pdfIn PDF document text
  • http://szakkepzosiklos.hu/upload/file/8925849646.pdfIn PDF document text
  • http://pensacolahigh1964.com/clients/1/1d/1d652d7f5bd5fd2f3712913460b20393/File/77596301241.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/56352151700.pdfIn PDF document text
  • http://kath-kiga-bw.de/bilder/berichte/file/sagoxato.pdfIn PDF document text
  • http://dishandspoonproductions.com/ckfinder/userfiles/files/woserujipirobaratoz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=visage+game+story+explainedPDF 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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