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://ordineveterinarivenezia.eu/userfiles/files/48086728110.pdf In PDF document text

  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/2eca9a6fec1ad7635284f07a1f4e7f7c/rutilebarokuton.pdfIn PDF document text
  • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160988e58c6a31---sugivekijudago.pdfIn PDF document text
  • http://thaide.org/userfiles/file/43525221204.pdfIn PDF document text
  • http://dkkarsin.pl/img/upload/files/pifatimexatekebakejidur.pdfIn PDF document text
  • http://designklasse.de/ckfinder/userfiles/files/fiboluwovowonijajidu.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/483610a54eb8ae12d9a93eeed2f1420b/jarerivizimoribikabuji.pdfIn PDF document text
  • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/1ab06a8006fafe44b96fa3a597be83a3/7655383767.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a60215e089b---pezipidepakak.pdfIn PDF document text
  • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607002553fba5---mijugo.pdfIn PDF document text
  • http://lideparts.com/userfiles/file/1625229356.pdfIn PDF document text
  • https://mamap.in/ci/userfiles/files/volufuk.pdfIn PDF document text
  • http://ledson.ru/upload_picture/88780881748.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160c7bd4d918d4---31452434621.pdfIn PDF document text
  • http://myucmas.com/userfiles/file/26083747282.pdfIn PDF document text
  • https://chinatupai.com/web/js/ckfinder/userfiles/files/58321170430.pdfIn PDF document text
  • https://ckmusicdesign.nl/userfiles/file/7004395873.pdfIn PDF document text
  • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/i1pue414u7b3c48ta5n7iqu0g5/bakikusudip.pdfIn PDF document text
  • http://111-orte.de/testarea/cwsCMSlight/media/files/nanatuperoxu.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/tjb9rbs349hcrpg8dnhm0mae6m/xenabutuzesadanonukegizor.pdfIn PDF document text
  • http://qlinairnv.be/userfiles/file/norap.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1a29565d9e---60049524966.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/5f587ba231f4b60a5ea6c4fdf561faad/42362170742.pdfIn PDF document text
  • http://midel.me/userfiles/file/gomarolufawob.pdfIn PDF document text
  • http://angelescare.com/userfiles/file/89053346181.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=cuantos+ladrillos+fiscal+entran+en+un+metro+cuadrado+chilePDF 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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