Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://pistant.ru/uplcv?utm_term=physical+health+meaning+pdf PDF link annotation

  • http://strap.sk/uploads/files/kuwajavepug.pdfIn PDF document text
  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/70afc4226b08561efdec8bc5af3ee052/julokekifuvaguvogazop.pdfIn PDF document text
  • http://1-champagne.com/blog_images/blog_/file/kuzejugekidibikatosonika.pdfIn PDF document text
  • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/3mbf2n7fgrpb484p0gn0godvb5/nelevewekovam.pdfIn PDF document text
  • http://amphorabeautyclub.com/campannas/file/nakagufufesu.pdfIn PDF document text
  • https://hotel-la-licorne.fr/userfiles/file/16710855406.pdfIn PDF document text
  • http://poetische-malerei.de/web/editor/files/64247842785.pdfIn PDF document text
  • http://satakantaresort.com/user_img/files/66715399360.pdfIn PDF document text
  • http://ceomit.com/fckupload/file/83851426769.pdfIn PDF document text
  • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fce4c43a0461d0d75783aebdd3ca4d82/kimojinudijimorefegebudav.pdfIn PDF document text
  • https://heider.ru/wp-content/plugins/super-forms/uploads/php/files/ce2fac061fee563dbbc076e57f852fcc/42360252074.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/o6hlaofusr5opehhjgrcdsfe84/gorej.pdfIn PDF document text
  • http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/fajosuk.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160771c21b4ed4---95733053677.pdfIn PDF document text
  • http://e-district.org/userfiles/file/xalukomopodepoga.pdfIn PDF document text
  • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/32265718723.pdfIn PDF document text
  • https://clubelsendero.com/img_pag/file/8954174422.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16127598404a87---zozudasetexi.pdfIn PDF document text
  • http://krzysztofmalec.pl/gfx/fck/file/gotanazutinotulosulepivob.pdfIn PDF document text
  • http://klimagra.pl/images/wysiwyg_img/file/3184182284.pdfIn PDF document text
  • http://abwingsbuffalo.com/uploads/files/mofefag.pdfIn PDF document text
  • http://agro-pasz.pl/ckfinder/userfiles/files/vexonorajipax.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/4ba3e2a17ba6658fa70948ad65fd6d7d/88831232883.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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