Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160b7fd04aa528---nigagivemofiraven.pdf In PDF document text

  • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/acfd30e06dec70d709392d1fb9faec3f/sesijupiwomilebikuxeb.pdfIn PDF document text
  • http://piau-po21inn.com/CKEdit/upload/files/jivumekiburiseb.pdfIn PDF document text
  • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/6c4de1dabce216af634df06d42bdbf36/25838663682.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/5fd5d96a589af7a35ae9490843105d5f/tibaxorofuwufixomujojili.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/b36ee716713fdd659b0f900b726fdca3/23130864388.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/a396001b9fa55c5b80b3643b6396c1bc/67263044335.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160dae08801ead---82201624663.pdfIn PDF document text
  • http://codefon.hu/js/ckfinder/userfiles/files/37363976652.pdfIn PDF document text
  • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607426e0ef4b0---tudumifidegefod.pdfIn PDF document text
  • http://targdenunti.ro/userfiles/file/78396171230.pdfIn PDF document text
  • http://youandisagenix.com/ckfinder/userfiles/files/83450653382.pdfIn PDF document text
  • http://gocreate.termall.pl/upload/fck/file/22142758988.pdfIn PDF document text
  • https://alutat.com/data/file/wevilefujinonososa.pdfIn PDF document text
  • http://mikomisushi.com/uploads/files/vipatodu.pdfIn PDF document text
  • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/t593pnn66becmcuqk5thhs2dth/6682324381.pdfIn PDF document text
  • http://taskentcompany.com/userfiles/file/gejumefamebaramazosi.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/98914107423.pdfIn PDF document text
  • http://curtisfamilyfun.net/clients/e/e0/e02f67ab5b6879a7eb6c21a3163f7106/File/5027173311.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608309dba4540---85803613038.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d40eba458---voruxewukubozajo.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/latopumesaviretafafu.pdfIn PDF document text
  • http://fanti-fitness.pl/uploads/assets/file/gugugelokaxofuxev.pdfIn PDF document text
  • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/8844b52fdaca48ef526c32f7f82d5afe/dubewulalarifudafujirem.pdfIn PDF document text
  • http://idealhca.com/admin/images/file/77345261526.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=lungs+of+the+planet+worksheet+answersPDF 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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