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 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=how+to+scan+qr+code+in+iphone+6s PDF link annotation

  • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/9d3s1ldutka07el8pa3peei955/24145264797.pdfIn PDF document text
  • https://www.liftechforklifts.com.au/application/third_party/ckfinder/userfiles/files/golugopuzofefumasudof.pdfIn PDF document text
  • http://jezirka-biobazeny.cz/UserFiles/File/migosufelegiv.pdfIn PDF document text
  • http://cz-synergy.cz/data/file/97185559228.pdfIn PDF document text
  • http://www.jysunshine-hotel.com/up_files/file/42391040019.pdfIn PDF document text
  • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/43f4c7e06f3d255bf46d20d758d0f9c6/60365360473.pdfIn PDF document text
  • https://ce-mi.pl/uploads/userfiles/files/21421770468.pdfIn PDF document text
  • https://taumed.kz/upload/2021/09files/210906152344712717erjr7.pdfIn PDF document text
  • https://fullhousetourism.com/UploadFiles/file/20210903190136177.pdfIn PDF document text
  • https://capitalsyndic.com/userfiles/file/75147171475.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1613fff4c6c0b5---xuzumimulativokixewowigap.pdfIn PDF document text
  • https://stop-remont.ru/ckfinder/userfiles/files/tifaxuz.pdfIn PDF document text
  • https://flcevent.fcu.edu.tw/plugin/ce1/ckfinder/userfiles/files/20210911223542.pdfIn PDF document text
  • https://philly.drinkpoint.com/uploads/files/fepolikapokasazizenuwiro.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380b4108d9f---52288426554.pdfIn PDF document text
  • https://s-serviss.lv/userfiles/file/nebidinajif.pdfIn PDF document text
  • http://yokosohk.com/files/fckfiles/file/pexiwipujataxadomexup.pdfIn PDF document text
  • http://projecthouse.bg/uploads/CKfinder/files/nusegesudororawitobina.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138b1532a6a0---20828968789.pdfIn PDF document text
  • https://treasurehunterdetectors.com/ckfinder/userfiles/files/69058285790.pdfIn PDF document text
  • https://hometeamcorp.com/images/usr/90915929593.pdfIn PDF document text
  • https://pt2-turbo-j3t.com/contents/files/tisurixekivajawenenas.pdfIn PDF document text
  • https://arvikabc.com/images/uploadedimages/file/99894060798.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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