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://huntic.ru/uplcv?utm_term=what+is+cat+7+and+8 PDF link annotation

  • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b37e57dcc6a---zirijevapojosupufolabusiv.pdfIn PDF document text
  • https://peilimineko.com/userfiles/file/32821283174.pdfIn PDF document text
  • https://angkorphotographyguide.com/userfiles/file/giwivokosam.pdfIn PDF document text
  • https://galerie-louise.be/userfiles/files/zumaxolutufurisu.pdfIn PDF document text
  • http://ikhmongol.mn/ckfinder/userfiles/files/74100015580.pdfIn PDF document text
  • https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/nixeziromirinifulasuxex.pdfIn PDF document text
  • http://maasmartcity.com/userfiles/file/logelukutal.pdfIn PDF document text
  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16079fd8a47c5d---2066408521.pdfIn PDF document text
  • http://netinflux.net/userfiles/file/93242130931.pdfIn PDF document text
  • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/c91b333ea5b39e106bf897e4c96507dd/vubotu.pdfIn PDF document text
  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086daf0922c2---perolitutitin.pdfIn PDF document text
  • http://studiogallerani.it/userfiles/files/97538488092.pdfIn PDF document text
  • http://gerd-pollak.de/userfiles/file/27795951376.pdfIn PDF document text
  • http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/50811075263.pdfIn PDF document text
  • http://cortabellanews.com/userimages/54352188219.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2tcv8r4ak49dq3krv4uplqhku5/61476656712.pdfIn PDF document text
  • http://msiutilities.biz/documents/83278206724.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160be201c5bc64---wamogekubabusejeduravusa.pdfIn PDF document text
  • https://gitteszoneklinik.dk/ckfinder/userfiles/files/kinixotir.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/3ad156957954ad88c2755a9a74b9b517/54757519612.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c252cb83cc---85410221781.pdfIn PDF document text
  • http://exclusivelimoservice.com/ckfinder/userfiles/files/taturex.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160700c6d36dcb---93615110808.pdfIn PDF document text
  • http://kleinschaden.expert/userfiles/file/21630854682.pdfIn PDF document text
  • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/200b4bac0315f861604d361dbc9dfe5b/35146680323.pdfIn PDF document text
  • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16082cbebd3036---62440902461.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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