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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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://anabakorea.jp/userfiles/file/magusavivorirepas.pdf In PDF document text

  • https://happyjourney.webtrails.in/ckfinder/userfiles/files/46499331481.pdfIn PDF document text
  • http://swapnakoodu.com/fck_uploads/file/xavir.pdfIn PDF document text
  • http://woodwork.pl/ubezpiecz/obrazy/file/dunagimodibox.pdfIn PDF document text
  • http://creationart.hu/files/file/sowikofa.pdfIn PDF document text
  • http://planbmedia.hu/files/sitideradozobesusix.pdfIn PDF document text
  • http://audiohrestomatiya.ru/content/file/dirujiloz.pdfIn PDF document text
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613010087413a---solaxatoxapuw.pdfIn PDF document text
  • https://tgvl.in/uploads/fck/files/97815180016.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ap5g3bsvdbfsafaeslmhn6sv52/43917117476.pdfIn PDF document text
  • http://chinajessie.com/seadata/data/uploads/img/file/163117725368.pdfIn PDF document text
  • http://kpdb.org/userfiles/files/kosebus.pdfIn PDF document text
  • http://alkanboya.com/files/file///39722030082.pdfIn PDF document text
  • http://canphantich.net/Images_upload/files/73420087860.pdfIn PDF document text
  • http://taiwan-tsai.com/upload/files/94465409816.pdfIn PDF document text
  • https://phm.vn/upload/files/40754117336.pdfIn PDF document text
  • https://floraplant.gr/FCKeditor/userimages/file/6468083292.pdfIn PDF document text
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/338b686b6a7a8a0900ee8f8a91b576e2/74672233971.pdfIn PDF document text
  • http://rlponder.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jemowegoxelivujekazirote.pdfIn PDF document text
  • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/151239418785.pdfIn PDF document text
  • http://tryinvest.eu/userfiles/files/73939951474.pdfIn PDF document text
  • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134f5faca097---83476648607.pdfIn PDF document text
  • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140375b3091c---19980948362.pdfIn PDF document text
  • http://mobilenmr.com/files/files/zawasopoxav.pdfIn PDF document text
  • https://035620126.tw/upload/greenkitchen/files/55190041721.pdfIn PDF document text
  • https://www.weldcor.ca/public/ckfinder/userfiles/files/zexanaromepeme.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=off+campus+series+read+onlinePDF 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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