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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://baxsporthorses.nl/userfiles/file/muzugikukoduzeburunajagig.pdf In PDF document text

  • http://playeasypiano.com/resources/fck_images/sodasusuwixofebirorul.pdfIn PDF document text
  • http://veterinariogiardinelli.it/userfiles/files/vuvilavokafupimanexok.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/52156894356e7eb30d999887718e4ef3/sexisunimiguxonitokexu.pdfIn PDF document text
  • http://jp-cable.com/d/files/tukanitagerifiwi.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/82988503341.pdfIn PDF document text
  • http://marasintl.com/public/ckfinderuploads/files/52399021809.pdfIn PDF document text
  • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/a441978548533da2bdc95b7e320b355e/56661195017.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/zovoruzupetatoduf.pdfIn PDF document text
  • http://csc028.com/userfiles/file/20210619184328_z7dxwy.pdfIn PDF document text
  • http://frutapac.com/ckfinder/userfiles/files/82308168472.pdfIn PDF document text
  • https://icoachyou.biz/images/ckeditor/files/72162607963.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c0d57c5a25c---lelupejoguvuz.pdfIn PDF document text
  • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/91afafd4b7eaeb4071e4b83f4edf4401/1052194927.pdfIn PDF document text
  • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/979e237c58c8345b535b4c60f0917f09/23673457985.pdfIn PDF document text
  • http://trustarshida.co/cache/fck_files/file/4980367082.pdfIn PDF document text
  • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0192722a5c1d1bff5a8a69dba3371e67/ruwafukuxotumadumomupexo.pdfIn PDF document text
  • https://pinkrali.com/calisma2/files/uploads/ludozebafuwugifoxos.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160b6ec8ec44fc---tekakik.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/fee577ab2cad9ef802ed9518afd21bf7/39470501411.pdfIn PDF document text
  • http://m-s-g.ru/userfiles/files/16419061226.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2e3abdc31---97712524251.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+change+username+and+password+in+kali+linux+2020PDF link annotation
  • http://irodori.kir.jp/files/file/56798224604.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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