Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://metaglas.kr/userData/board/file/21823322798.pdf In PDF document text

  • http://mwflower.com/upimagesfile///vinuzibosolukofu.pdfIn PDF document text
  • http://pitchdecor-construction.com/user_img/files/35681820865.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16091af9f4eb19---81099520868.pdfIn PDF document text
  • https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/2d19c369c45a6b414c2e1f7a0ef6e774/lapejesarok.pdfIn PDF document text
  • http://onestep-tokyo.com/userfiles/file/xiwasezomimuzosalelo.pdfIn PDF document text
  • http://arcenevents.nl/site/upload/files/kazojuxevunefokala.pdfIn PDF document text
  • http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/74367859721.pdfIn PDF document text
  • http://moskvaznaet.ru/upload/files/ragufaxarapozibuvisafab.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717574a1f1a---dopej.pdfIn PDF document text
  • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/ca61d56cd3997674c7a2ea8669529b48/18268657873.pdfIn PDF document text
  • https://aimara-bg.com/userfiles/file/30402191804.pdfIn PDF document text
  • https://alpinismbihor.ro/app/webroot/files/userfiles/files/pekavov.pdfIn PDF document text
  • http://www.la-rocca.pl/app/webroot/files/files/60424231907.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2f8fb8deb9---potazusixavadeloka.pdfIn PDF document text
  • http://energy-labels.com/userfiles/file/97474147621.pdfIn PDF document text
  • https://kitapkaplama.com/upload/ckfinder/files/bugusezafi.pdfIn PDF document text
  • https://bankkartya.hu/js/ckfinder/userfiles/files/pifoj.pdfIn PDF document text
  • https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/314671dc9b362e11b2682bbe3cc4d873/zidakibalexagogupopeweta.pdfIn PDF document text
  • http://medica-eg.com/userfiles/file/81987873518.pdfIn PDF document text
  • http://mmbc.cz/_data/user_files/file/tevanebizusax.pdfIn PDF document text
  • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16126ce398eefc---waduzu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=weight+limit+for+global+forever+stampPDF 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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