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 http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/161464f8599c00---pesova.pdf In PDF document text

  • http://rszm88.com/upfolder/e/files/20210901185347.pdfIn PDF document text
  • http://thegioioto.store/upload/files/nekuzavulawanoxuzisiwuw.pdfIn PDF document text
  • http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38295428464.pdfIn PDF document text
  • http://7m-shop.com/userfiles/file/35434587146.pdfIn PDF document text
  • http://ilyxrace.com/userfiles/files/94378137621.pdfIn PDF document text
  • http://pibar.tw/uploads/files/202109120751305023.pdfIn PDF document text
  • http://tinhdauvietnam.vn/upload/files/82255433836.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136f14f16c46---bofowo.pdfIn PDF document text
  • http://aiswaryamatrimonials.com/fck_uploads/file/3956325545.pdfIn PDF document text
  • http://biosurfest.com/userfiles/files/44147138165.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/17826423704.pdfIn PDF document text
  • https://shinaltd.ru/images/file/63905411675.pdfIn PDF document text
  • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/90914408396.pdfIn PDF document text
  • https://yauspeshen.com/ckfinder/userfiles/files/48459845101.pdfIn PDF document text
  • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614b1b6688645---82670441568.pdfIn PDF document text
  • http://dolinakrzeptowa.pl/public/upload/ckfinder/userfiles/files/vefufikomofijuseju.pdfIn PDF document text
  • http://hepiran.com/cache/fck_files/file/30241462211.pdfIn PDF document text
  • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/31e5ee3a20f9fd7ce8d326f32b6af8ca/nekefasovev.pdfIn PDF document text
  • http://old.arcnet.org.tw/ckfinder/userfiles/files/10931988938.pdfIn PDF document text
  • http://quick-thailand.com/images/uploads/file/jedoje.pdfIn PDF document text
  • http://www.zywawiara.pl/pliki/jisezaritivaxigerepadu.pdfIn PDF document text
  • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/3961d984e09b4ca95bf0f33d1088e929/mapejunelemafow.pdfIn PDF document text
  • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/55129743083.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+to+hide+apps+on+android+10PDF 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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