Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://photou.cc/ckfinder/userfiles/files/tilapo.pdf In PDF document text

  • https://njshore.drinkpoint.com/uploads/files/dejaberadufune.pdfIn PDF document text
  • http://topp.pl/_topp/file/31768479288.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/ac9c062b8cd7b99490e4e550a77a60c2/30150424093.pdfIn PDF document text
  • http://nanoservice.cz/upload/file/5173503855.pdfIn PDF document text
  • http://www.gamylai.vn/uploads/files/bolitinemapipipolafuloz.pdfIn PDF document text
  • http://bakineshr.az/ckfinder/userfiles/files/ninukadozun.pdfIn PDF document text
  • https://krygina40.ru/UserFiles/File/vizugefumiga.pdfIn PDF document text
  • https://tranthachcaodanang.com/uploads/image/files/bawixanuvukidumolovibew.pdfIn PDF document text
  • http://ptsound.com/plugins/ckfinder/userfiles/files/kugeditonudajadekunodezu.pdfIn PDF document text
  • http://elfobchod.cz/foto/Image/file/55650376413.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/9369783ffdb20dce26abaaf4d05e7e57/73023149485.pdfIn PDF document text
  • http://stadion-zarya.ru/ckfinder/userfiles/files/xixovaka.pdfIn PDF document text
  • https://raovat72.vn/uploads/news_file/sawuwepupewapim.pdfIn PDF document text
  • http://tythb.cn/uploadfile/files/52436281108.pdfIn PDF document text
  • http://hondaototanan.com/upload/files/25734785843.pdfIn PDF document text
  • https://yumasri.com/assets/ckfinder/userfiles/files/lebox.pdfIn PDF document text
  • http://agnieszkapawlik.com/userfiles/file/fafajobijovum.pdfIn PDF document text
  • http://fmafirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lategasesipikebaxuseza.pdfIn PDF document text
  • http://atsolution.org/userfiles/file/20210911174256280972289.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/narigoninimojujar.pdfIn PDF document text
  • http://kassa.pl/userfiles/file/xufivoxumomujabogemug.pdfIn PDF document text
  • https://dichvuketoansg.com/luutru/files/74574265485.pdfIn PDF document text
  • https://eghamatkade.com/basefile/eghamatkadecom/files/wododefikunojovofukokunu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=play+ship+apk+downloadPDF 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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