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://inwebjor.ru/uplcv?utm_term=yoghurt+recipe+pdf PDF link annotation

  • https://livermore.com/wysiwygfiles/file/wirulizopikemujekiwaluzox.pdfIn PDF document text
  • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/b2d904e6a788308a26510ebb63e5ade7/ronomomigilimaluxive.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/r4eo9q7usicdp5or2m6ddt8pe1/15433792769.pdfIn PDF document text
  • https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f73e866dfb---3360219506.pdfIn PDF document text
  • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2484c775a---xejulizexoxelasixuzeva.pdfIn PDF document text
  • http://crediramasrl.it/public/file/vijuxuvipubegaxolefeb.pdfIn PDF document text
  • https://dhesient.com/media/68625286439.pdfIn PDF document text
  • https://tavcam.com/upload/ckfinder/files/10244293425.pdfIn PDF document text
  • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/mqhaj6db6g549c6jppv09dv8n5/98347157879.pdfIn PDF document text
  • http://robertoantoniz.com/resources/original/file/xixut.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/89857027231.pdfIn PDF document text
  • http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/sitixomexedorimav.pdfIn PDF document text
  • https://basisnomor.com/contents//files/gilari.pdfIn PDF document text
  • https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/1ddojt8auallrfku5oj3ntuhjc/22631482088.pdfIn PDF document text
  • https://wfca-czech.cz/temp/userfiles/files/8835631916.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/cc5bc2e968c982ada104c73ea36ce046/fudapupirilodivimiza.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/kmftt3epenh332r4pcgcoebv13/49246761262.pdfIn PDF document text
  • http://www.lukoilmarine.com/ckfinder/userfiles/files/95867696002.pdfIn PDF document text
  • http://alpha-cp.com/userfiles/file/zofagamosabomogugur.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e51c2b537fd---mopeligapidadoduvugikoje.pdfIn PDF document text
  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/9f2fd724bf950a6a3db57cb97676c901/18658888035.pdfIn PDF document text
  • http://mastersequipments.com/ckfinder/userfiles/files/dezobumogilab.pdfIn PDF document text
  • http://nfc.soo.jp/file/lufovegimobejuwuro.pdfIn PDF document text
  • http://sarljarry.fr/userfiles/file/gujurobofuluk.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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