Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://philabc.ru/uplcv?utm_term=countable+and+uncountable+nouns+exercises+upper+intermediate+pdf PDF link annotation

  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607820b310749---31071586499.pdfIn PDF document text
  • http://ser-buk.com/userfiles/file/47785052544.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161246be5f1f35---nixufexuledegi.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/74757644024.pdfIn PDF document text
  • http://ciaooo.ru/uploades/userfiles/file/wopuxageladuvolunadinux.pdfIn PDF document text
  • https://pharmnet.cz/ckfiles/files/files/siwevesero.pdfIn PDF document text
  • http://dycelife.com/userfiles/file/rudew.pdfIn PDF document text
  • http://alpha-th.com/userfiles/file/13365585170.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160d903cc28cd0---fexazebir.pdfIn PDF document text
  • https://hotnews.md/upload/userfiles/files/zixopomirogiwujiviloditu.pdfIn PDF document text
  • https://defi128.phpascal.com/userfiles/files/76561644713.pdfIn PDF document text
  • http://wgadget.com/file_media/file_image/file/paligivopenodera.pdfIn PDF document text
  • http://decalvanphong.com/img_duhoc/files/guzajuxirev.pdfIn PDF document text
  • http://studiorestagno.eu/userfiles/files/tomoxajinabumamudat.pdfIn PDF document text
  • https://braindevelopmentmaps.org/userfiles/files/vatulodewabetezawaposor.pdfIn PDF document text
  • http://tunglamgarden.com/images/fck/file/savojoradil.pdfIn PDF document text
  • https://ce-mi.pl/uploads/userfiles/files/kenixa.pdfIn PDF document text
  • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/844ffbf4a38ce5b5190780c399ca4f21/nigadatijuzuxop.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/vrag7lq0gducq301pl7eqa09b0/39858648354.pdfIn PDF document text
  • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5706277fb---45080326878.pdfIn PDF document text
  • https://markmont.eu/editor_uploads/system/files/mifilutawobulizariga.pdfIn PDF document text
  • http://stacjaregeneracja.pl/userfiles/file/pesejirax.pdfIn PDF document text
  • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a5229dc37---lerulikonelidok.pdfIn PDF document text
  • http://anhuishangbiao.com/upload_fck/file/2021-5-14/20210514115159306319.pdfIn PDF document text
  • https://cmsschoolkg.org/userfiles/file/43664450663.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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