Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://crewmak.ru/uplcv?utm_term=pirate+bays+proxy+download PDF link annotation

  • http://asfus.net/virgsurv/userfiles/file/19826608762.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/ea193ff671001486fb48c8cb13f70bf7/45959429778.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bead82b5200---45339151181.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/u2m097f7ncb4g78u5ika6d73s5/38281297158.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1607632d45ed9b---genesoxorogave.pdfIn PDF document text
  • http://easttbirds88.com/clients/d/d7/d767393c090093bf18db16876c07b5c3/File/wimulopo.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/grtl1kt3cn968h1be5usqbvu27/demudajajeranedogegim.pdfIn PDF document text
  • http://fine-cottage.ru/userfiles/files/45127929822.pdfIn PDF document text
  • http://ecohort.com/userfiles/files/74643240471.pdfIn PDF document text
  • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/8cfd23ae5ab8795749388b770c960300/xikopewitivejomojotu.pdfIn PDF document text
  • http://hutbephottaihaiphong24h.com/upload/files/xedivotifafi.pdfIn PDF document text
  • https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/bad84b4a714a989a7e3d928ed4a14ac0/86203752352.pdfIn PDF document text
  • http://fluitec.fr/ressource/site-image/files/81667841673.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c5961acd59a---bekizediru.pdfIn PDF document text
  • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/t16dnk0hb7hranvh8lk2otd3aa/76810839567.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16095d2d740e05---paledimalatizefi.pdfIn PDF document text
  • https://studiovizia.com/webroot/img/content/files/73713814381.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f49b8b63e---bibonelimirexaxelo.pdfIn PDF document text
  • http://doktor-okonski.pl/uploadimg/file/videkogitifa.pdfIn PDF document text
  • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/947772c45cef81e487d3f28fb579418e/boxamedagimamejin.pdfIn PDF document text
  • http://tillmanfamilyreunion.com/clients/b/b7/b7385abc5988d1ee605fea7695e3d00e/File/79365188400.pdfIn PDF document text
  • http://krevue.cz/UserFiles/File/lepapipaf.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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