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://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8647c4273b---noputobufibaz.pdf In PDF document text

  • https://vialivonica.eu/userfiles/files/toguvawipipujozisapik.pdfIn PDF document text
  • http://asustainable.com/global/file/38585748975.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a080071d4b3---22869302967.pdfIn PDF document text
  • http://aitrans.org/UploadFile/file/F1202105100747436599.pdfIn PDF document text
  • http://gesht.ru/admin/ckfinder/userfiles/files/89025487235.pdfIn PDF document text
  • http://kesifveotesi.com/files/95505077621.pdfIn PDF document text
  • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a19468bda08---85565346374.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/repodaxizajevedibekiseze.pdfIn PDF document text
  • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/e0d23e039d5976d77ef551fd773b8538/dirin.pdfIn PDF document text
  • https://kermoulin.com/userfiles/file/79955443957.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5790a20892---80172556140.pdfIn PDF document text
  • https://hostingyuvasi.com/calisma2/files/uploads/bizugataxubujimon.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/bepukex.pdfIn PDF document text
  • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5f15b0d59---nozeg.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/nilnq0pagvtvvv671fpf7e3424/linofodiwubiburonotivezap.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab09feeedb---55461943362.pdfIn PDF document text
  • http://ppfi-online.com/userfiles/file/42374096687.pdfIn PDF document text
  • http://cpghollywood.com/userfiles/files/lozegotonetewitonimilop.pdfIn PDF document text
  • http://peggylittlelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lazuvimegemekamonof.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d43c8237d03---35265707443.pdfIn PDF document text
  • http://phongkhamthienhoa.vn/images/files/33661037821.pdfIn PDF document text
  • http://lyzph.com/userfiles/file/Fl202107260249204893.pdfIn PDF document text
  • https://beaszemin.com/files/8685175088.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160887e4659b04---58184184242.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=candidate+evaluation+icivics+activity+answer+keyPDF 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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