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://archism.ru/uplcv?utm_term=get+outlook+for+android+meaning PDF link annotation

  • http://babijie.com/upload_fck/file/2021-9-1/20210901094649241508.pdfIn PDF document text
  • http://nhuahoanglong.com/luutru/files/28041566776.pdfIn PDF document text
  • http://inercial.es/uploads/files/zibazupinir.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16141218829006---76883604527.pdfIn PDF document text
  • http://lionsmarsala.it/userfiles/files/30410355845.pdfIn PDF document text
  • http://klgd.spokoino.ru/i/upload/files/34392603616.pdfIn PDF document text
  • http://ggbris.com/slbdavbatala/userfiles/file/gilakaseb.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a08cf2f5f---tabaxenagunexed.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/64800336874.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/kkgchhsl785vsqfvmnkg4hn175/30376470929.pdfIn PDF document text
  • http://bhttourist.com/upload/fckimagesfile/dubuzozukoxemagiseluw.pdfIn PDF document text
  • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/c35354fad7775c6cf0fa4b77fb9364bf/96383596489.pdfIn PDF document text
  • http://salonorganica.ru/upload/files/dowovo.pdfIn PDF document text
  • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16136be6b6aeac---74456705365.pdfIn PDF document text
  • http://selidbe-beograd.info/files/44709373044.pdfIn PDF document text
  • https://aarushimukhwas.idealviews.com/userfiles/files/86292812097.pdfIn PDF document text
  • http://cbstav.cz/file/rurulakujijalifesafe.pdfIn PDF document text
  • http://erfanekeshmiri.ir/userfiles/file/wuragusafajovulutagaj.pdfIn PDF document text
  • http://www.peritaonline.es/ckfinder/userfiles/files/40192779274.pdfIn PDF document text
  • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/9eruibbij8poh0hr1a86p1q48k/vasifowovonutopak.pdfIn PDF document text
  • http://bsa-billiard.by/images_from_html_editor/file/fudanibusobivo.pdfIn PDF document text
  • http://yuli-china.ru/d/files/42868057833.pdfIn PDF document text
  • https://driftwoodcc.com/userfiles/files/74125580915.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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