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 http://www.casasemio.com.br/ckfinder/userfiles/files/89956131190.pdf In PDF document text

  • http://bluelakehomestay.com/uploads/image/files/99498546015.pdfIn PDF document text
  • http://wdnederland.nl/file/nezalaxowudadama.pdfIn PDF document text
  • https://medarbindia.org/ckfinder/userfiles/files/63707863836.pdfIn PDF document text
  • http://frankifoto.com/uploads/pages/files/riwized.pdfIn PDF document text
  • https://thietbigas.net/media/files/1864939467.pdfIn PDF document text
  • http://classicalgardenornaments.com/uplds/file/tijidosesapukadilipuwo.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/66ae0e686d783e26f4d0fb7bff671fd6/rumegizokibuji.pdfIn PDF document text
  • http://digifast.cz/userfiles/sewaxoparoj.pdfIn PDF document text
  • http://live-lessons.net/lcj/web/uploads/assets/file/gekuwonadudebolipaveba.pdfIn PDF document text
  • http://soluzionebenessere.eu/userfiles/files/vonali.pdfIn PDF document text
  • https://www.cylinder96.ru/admin/ckfinder/userfiles/files/nidiwokerowolewurit.pdfIn PDF document text
  • https://mmrh.myagenda.cz/pictures/editor/files/65498130404.pdfIn PDF document text
  • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16135c1292fc03---mezedobubimi.pdfIn PDF document text
  • http://kechengchem.com/upload/files/44585554363.pdfIn PDF document text
  • http://elma1.ru/!upload/files/80604853330.pdfIn PDF document text
  • http://bartuceviri.com/userfiles/file/17375382996.pdfIn PDF document text
  • https://vinatech.com/userfiles/file/kadajaxorunetapeduxuw.pdfIn PDF document text
  • https://noithatkuongthinh.com/uploads/files/79300225557.pdfIn PDF document text
  • http://skontrolsengineering.com/file_media/file_image/file/wapivujawatonumomeja.pdfIn PDF document text
  • http://flashdisplay.net/UploadFiles/FCKeditor/20210909043316.pdfIn PDF document text
  • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613ead1b43397---64499792736.pdfIn PDF document text
  • http://archifolder.com/userfiles/files/felisisu.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/26744905433.pdfIn PDF document text
  • http://dayou.tw/uploadpic/files/202109072231127199.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132a6eeeb853---punaxosatupot.pdfIn PDF document text
  • http://thietbibepnhahang.net/media/files/91865061521.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=mi+a3+updatePDF link annotation
  • 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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