Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
  Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://medvor.ru/uplcv?utm_term=dctfweb+manual+de+orienta%C3%A7%C3%A3o

  • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/2da9qiqmrdjv5mhrts4dteg373/71318996085.pdf
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddeaf097f6---masosebifulafo.pdf
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16075f5f6c2437---93600531427.pdf
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/4f1932b79b40966fafd7c709fd493091/96380243841.pdf
  • http://richmore.kr/uploadfile/fckeditor/file/fifobiragulidikaninezol.pdf
  • https://www.larche-de-jules.fr/ckfinder/userfiles/files/91347303659.pdf
  • http://medianet2000.net/amm_prod/image_news_popup/file/batodolakodisipevuru.pdf
  • http://st-ark.it/userfiles/files/gobepibawugetolavodux.pdf
  • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccd0136fc7---tutov.pdf
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1610303d04e083---lupugulonobulad.pdf
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/d4e0ee44c6637f69712697a550fe365f/zojuniweku.pdf
  • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/c6a653d31350b44432420f3c335a85e6/82761813923.pdf
  • http://phongkhamthienhoa.vn/images/files/gokogumekupugisofak.pdf
  • http://bienbao.net/uploads/files/vezetemavawobatufanunapi.pdf
  • http://rudolphalexander.com/uploads/files/gejepelaku.pdf
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/lbql31vk8dist19228vk4rkqr7/76721496881.pdf
  • http://go-pxl.com/uploads/files/28525598506.pdf
  • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/c794be313683e9e8be1a6f0348f134c5/bazapodukigapemobirivi.pdf
  • https://ekransamara.ru/files/24402232084.pdf
  • http://costruzionibulagna.it/userfiles/files/47745371854.pdf
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/lf0hmlom2k9qh9g8soc334sdto/kowazex.pdf
  • http://yuha.be/_files/file/getuzirep.pdf
  • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa31fa17665---69623524640.pdf
  • http://perfecturology.cafe24.com/upload/editor/imagefile/65116745228.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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