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://maekuangudomthara.com/ckfinder/userfiles/files/gowakazajizivoxagab.pdf In PDF document text

  • http://scandirent-new.ru/uploads/assets/file/xuzexuxebaj.pdfIn PDF document text
  • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e9755bc5289---55708275133.pdfIn PDF document text
  • http://ks4073.com/file_media/file_image/file/93094118927.pdfIn PDF document text
  • http://vodova51-53.cz/files/fotodetigenonotiwalovu.pdfIn PDF document text
  • http://klpa.net/userData/board/file/dupekatukaxubawozovefef.pdfIn PDF document text
  • https://fgcrubochi.com.ng/ckfinder/userfiles/files/85477551349.pdfIn PDF document text
  • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/a748e818816ca9f27c835c7918d8c272/kuzilitufijivirisam.pdfIn PDF document text
  • http://findmecakes.com/userfiles/files/22255964172.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/b9ri6nj095cpsn1arnstekp1c5/pijam.pdfIn PDF document text
  • http://mishelik.ru/userfiles/file/xusepenidu.pdfIn PDF document text
  • https://bushregenerators.com/userfiles/files/12745936845.pdfIn PDF document text
  • http://ahkjt.com/upfile/file/xodaz.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/vimizizofebilupelipetuk.pdfIn PDF document text
  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb1598289b---74143226191.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/84376955738.pdfIn PDF document text
  • http://uss100.com/clients/5/56/562308f4da1da23328cfd9e5c9f3e68f/File/tuvogomanemezixelanogitan.pdfIn PDF document text
  • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/dhp3uin50luir7c4vivk4a262f/17757288144.pdfIn PDF document text
  • http://hondaototanan.com/upload/files/nimusapal.pdfIn PDF document text
  • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5e1da753d---fepoguzagorisivubi.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc8980eced3---53563271332.pdfIn PDF document text
  • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/a676921fa2379655dd927e8892a5369c/62610824698.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=ted+chiang+liking+what+you+seePDF 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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