Malicious PDF — malware analysis report

Heuristics 7

• 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 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://synerhu.ru/uplcv?utm_term=4shared+premium+apk PDF link annotation

  • https://masihpt2.com/contents/files/42278212232.pdfIn PDF document text
  • http://ky-auto.com/uploadfile/files/dupugiresejosu.pdfIn PDF document text
  • https://southernwashpros.com/nbloom/fckuploads/file/92555674120.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161334812253fb---75253516692.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/j8go58vv73tarsf004igjovvm5/tutivemokawiwewexu.pdfIn PDF document text
  • https://ceramicasvillaflor.cl/UserFiles/File/355555433.pdfIn PDF document text
  • http://microcement.ua/userfiles/file/lotejo.pdfIn PDF document text
  • https://helicopterleasingservices.com/userfiles/files/girafagi.pdfIn PDF document text
  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613349f52ad09---66905727755.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/61028182117.pdfIn PDF document text
  • http://bkmarine.net/ckfinder/userfiles/files/1630755130.pdfIn PDF document text
  • http://ristorantebiscione.com/userfiles/files/95805806729.pdfIn PDF document text
  • https://fullhousetourism.com/UploadFiles/file/20210903192045137.pdfIn PDF document text
  • http://4seasonstours.in/userfiles/file/bawebomoxilore.pdfIn PDF document text
  • https://dp-silver.com/userfiles/file/piluxovulimikaxubonas.pdfIn PDF document text
  • http://energosol.pl/images_cms/file/44448908473.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c4e5b8f4a---sizen.pdfIn PDF document text
  • http://gediklimakinahidrolik.com/resimler/files/disupawumuke.pdfIn PDF document text
  • http://shanghaiqingchen.com/upload/files/63101215305.pdfIn PDF document text
  • http://sadiqandsons.com/userfiles/files/mitoliribu.pdfIn PDF document text
  • https://autonoleggioassereto.com/file/28388989222.pdfIn PDF document text
  • http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/57271881207.pdfIn PDF document text
  • http://xn--80aejmo0alc.xn--p1ai/ckfinder/userfiles/files/88169847742.pdfIn PDF document text
  • https://cvsc.co/userfiles/file/49473230918.pdfIn PDF document text
  • http://influences-vegetales.eu/assets/Image/files/lizoxunebipumixe.pdfIn PDF document text
  • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/39189902113.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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