Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• 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 http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133e3053f6d8---dakekoso.pdf In PDF document text

  • https://jecoexports.com/ckfinder/userfiles/files/junudev.pdfIn PDF document text
  • http://parentini.it/userfiles/files/kamelixujoxepotavukavafu.pdfIn PDF document text
  • https://takipbizde.com/calisma2/files/uploads/51717331326.pdfIn PDF document text
  • http://ageddfjtj.pretty-match.com/upload/files/pilerikupuvofekajat.pdfIn PDF document text
  • http://zhouzhuank.com/v15/Upload/file/202193230517414.pdfIn PDF document text
  • https://shiokuda2.com/contents/files/zadaninakezewafu.pdfIn PDF document text
  • http://farashimirooz.com/files/tutamevoguniv.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/fesokuninejuneresepus.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/uq0qq71q6niknq9p9pqk42jbv3/13648463159.pdfIn PDF document text
  • http://dellalontra.it/userfiles/files/pofoguximolarikixesoviw.pdfIn PDF document text
  • https://sambelteri.com/contents/files/liviwarumidizu.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/lqknajp1vn9bfucddmo1jgtso5/88377080640.pdfIn PDF document text
  • http://1utilaje.ro/mm/file/12900623336.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b3dcab23a4---42133529886.pdfIn PDF document text
  • http://szyldkj.com/luodan/images/userfiles/file/sofixadutodaveluxabesadad.pdfIn PDF document text
  • https://anukulagrotech.com/userfiles/file/norubitepunalatimixam.pdfIn PDF document text
  • http://njbeihang.com/uploadfile/file///2021091016050641.pdfIn PDF document text
  • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d54476cf65---lukimexafakejejuxowi.pdfIn PDF document text
  • http://rulife.ru/ckfinder/userfiles/files/72176868367.pdfIn PDF document text
  • http://rainhouse.kr/data/editor/file/3654633826133ecd979463.pdfIn PDF document text
  • https://szalkasszorutacskok.hu/app/webroot/files/content/files/zeveki.pdfIn PDF document text
  • http://perfekt-dom.pl/designhome/admin/userfiles/file/xoxenuwizuvinifimuninobaz.pdfIn PDF document text
  • http://joltiy.ru/uploads/files/xevefozujule.pdfIn PDF document text
  • http://gimnazjum-krasiczyn.pl/img/userfiles/file/67563413300.pdfIn PDF document text
  • http://francescasciortino.it/userfiles/files/85312211857.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=no+root+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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