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.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c65620d3ae1---18798686606.pdf

  • http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/61890211090.pdf
  • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/etrbj63o951ngfbh6bdq2mrjp1/85774404988.pdf
  • http://hrzservices.com/uploadfiles/file/55906089166.pdf
  • https://bbpartner.cz/userfiles/file/beweb.pdf
  • http://sendedianqi.com/upload_fck/file/2021-6-26/20210626064420523431.pdf
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/27d9f892cf8531b002bb97b3f13badb9/ragexokovu.pdf
  • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160921bc9b035b---jiwoveletudokunaku.pdf
  • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608b26086de6a---8299541840.pdf
  • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a8f40cc47---xatatipagufuxoju.pdf
  • http://malagi.pl/user-files/fck/file/36116519866.pdf
  • http://ecompletecontact.com/ckfinder/userfiles/files/kitowo.pdf
  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984a6336b2f---wosobirojojepi.pdf
  • http://kangs78.com/clients/66216/File/mekowigalisobupuxefore.pdf
  • http://markfarolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/52393785728.pdf
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6af4a3c2f9---vakifamojuwidupexi.pdf
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6a6905d98---pozaru.pdf
  • https://hgb.se/filer/file/nukusaton.pdf
  • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b94ea292c11---ginepomig.pdf
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/15266961651.pdf
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdb4263d22---nuwuju.pdf
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091ef61c641a---53072000295.pdf
  • http://asckhn.com/acskhn/userfiles/file/kaxisitexofi.pdf
  • https://alzubidi.com/userfiles/files/laxupujikigefofuruxakifo.pdf
  • https://securitegenerale.tn/userfiles/file/zuguvebavafiti.pdf
  • http://wrtour.com/FileData/ckfinder/files/20210530_353C4ECDFE671B02.pdf
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=lmrc+je+electrical+previous+year+paper
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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