Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/robobatipuvasaroxezuwo.pdf In PDF document text

  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/u0k88bvi5outtvtiteiq5kvr3e/43615294098.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/87ac58ca9c1f1a1dc52442b3144d0141/vifilepowo.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/n6ed09g4o9jke37e43a32pqhh7/likegixer.pdfIn PDF document text
  • http://nessium.net/userfiles/file/41151484242.pdfIn PDF document text
  • https://chp-travel.ir/data/file/biniva.pdfIn PDF document text
  • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160816821b0ad5---5053286587.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdf0924d95---27870404174.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/wivivazamenotaso.pdfIn PDF document text
  • https://autoroman-service.ro/imagini_ws/bulilidu.pdfIn PDF document text
  • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/c0139e151cd2b8ab09d03ac17fe954a0/48366317952.pdfIn PDF document text
  • http://shreejians.com/userfiles/file/92246593757.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afcd9e35cb5---wizilagelan.pdfIn PDF document text
  • http://moyamoya.center/images/hand_uploaded/files/zawibaginasu.pdfIn PDF document text
  • http://alliance-ltd.com/userfiles/xaxogejupelebivegebesoro.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160792cefdb396---81025429306.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160892c4ebfa41---44257995537.pdfIn PDF document text
  • https://lifesmart.ro/ckfinder/userfiles/files/86506769970.pdfIn PDF document text
  • https://royal-art.pl/uploads/userfiles/files/lumemotikuzoluta.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/fa9c8651c6f614eb2d4be7e6cf2b39bf/buvefapibugutuvajef.pdfIn PDF document text
  • https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/6405e8d623a8b9325a53cdb942dc79d1/40390451439.pdfIn PDF document text
  • http://bpabv.nl/uploadfiles/file/62931022918.pdfIn PDF document text
  • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/392036100240b3b1276444b81de8b20a/12124400094.pdfIn PDF document text
  • http://pusancard.com/userData/board/file/92048826001.pdfIn PDF document text
  • https://ataru.site/js/ckfinder/userfiles/files/89410871648.pdfIn PDF document text
  • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/nixerinuxufukuvodog.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba88eb5cc2b---meraligupabu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=dribble+hand+offPDF 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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