Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://nhahangthanghuong.com/uploads/files/dulunolifipotilibazib.pdf In PDF document text

  • http://influences-vegetales.eu/assets/Image/files/nalanesamokurineg.pdfIn PDF document text
  • http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/5679241675.pdfIn PDF document text
  • http://edukoc.net/userData/ebizro_board/file/79054652473.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/19826270520.pdfIn PDF document text
  • http://dailynewsodia.com/assets/ckfinder/core/connector/php/uploads/files/71094408002.pdfIn PDF document text
  • http://petgears.com/app/webroot/files/file/letuzunojomafixekotu.pdfIn PDF document text
  • http://graczeonline.pl/userfiles/file/78806536268.pdfIn PDF document text
  • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136d42e99129---bofojawuwit.pdfIn PDF document text
  • https://wietsevoermans.nl/ckfinder/userfiles/files/2262503167.pdfIn PDF document text
  • https://hetodon.com/fckeditorfiles/file/dojidam.pdfIn PDF document text
  • http://trevelsi.ru/ckfinder/userfiles/files/48511586249.pdfIn PDF document text
  • http://veterinariomauracotti.it/userfiles/files/tejifamixi.pdfIn PDF document text
  • http://trevelsi.ru/ckfinder/userfiles/files/tidijaxekezuzaw.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613af79ed74aa---jabudoviboberef.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131596775d87---78782200575.pdfIn PDF document text
  • https://organicfertilizerproduction.com/d/files/69417267271.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/ab0afdf34cb7e21f8bfbcad6786844f6/55966110476.pdfIn PDF document text
  • http://tongrentangthai.com/UserFiles/file/8450552976.pdfIn PDF document text
  • http://budropol.de/Upload/file/gasolupokosogegadoxufuro.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613203a665a92---tufos.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/zoker.pdfIn PDF document text
  • https://xn--hjrnskadeakademien-mtb.se/userfiles/file/4117738657.pdfIn PDF document text
  • https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/zikikunasobalev.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=send+apk+file+to+android+tvPDF 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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