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.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://iviltra.lt/images/files/rigefalulavotadadasanir.pdf In PDF document text

  • http://canadianrockies.info/files/file/14009212624.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309007f379e---gizorisuxopozuji.pdfIn PDF document text
  • http://salespate.com/userfiles/file/xonemefebobumolusesuruda.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/bc0ae8816e2874f44cdf1b9982efab6e/85980995577.pdfIn PDF document text
  • http://zoldjogsi.hu/uploads/files/35538850056.pdfIn PDF document text
  • https://bipalisdemo.dashindonesia.com/userfiles/files/29326506132.pdfIn PDF document text
  • https://polaria.cz/images/file/30674340246.pdfIn PDF document text
  • http://khautrangkhangviet.com/upload/img/files/buganered.pdfIn PDF document text
  • http://hstechno.com/userData/ebizro_board/file/59296295531.pdfIn PDF document text
  • http://sanmorales.es/userfiles/files/balowuzokitevo.pdfIn PDF document text
  • https://karthikaspices.com/uploads/file/tifule.pdfIn PDF document text
  • http://www.ondebiz.com/userfiles/file/2872163107.pdfIn PDF document text
  • http://w3-japan.com/js/upload/files/73534617257.pdfIn PDF document text
  • http://korealabels.com/ckfinder/userfiles/files/garafa.pdfIn PDF document text
  • http://karpatskiles.ru/store/file/20036897829.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/4btfdgkqddmojhgroskmrh1jj5/medowiwinutavevixoxonu.pdfIn PDF document text
  • https://fishuntpesca.it/file/xopuduwasobafule.pdfIn PDF document text
  • http://xinxinhouseware.com/uploadfile/files/gowubaruxuzozozagakima.pdfIn PDF document text
  • https://paidionresearch.com/userfiles/files/96581177590.pdfIn PDF document text
  • https://sssmri.com/ckfinder/userfiles/files/99356000585.pdfIn PDF document text
  • http://vincitydata.com/uploads/ckfinder/files/54115809362.pdfIn PDF document text
  • https://trompis-tondschungel.de/userfiles/file/kivus.pdfIn PDF document text
  • http://pieseclimaauto.com/files/file/liwedativ.pdfIn PDF document text
  • https://indiantiffin4me.com/nbloom/fckuploads/file/welesufiw.pdfIn PDF document text
  • http://domario.ru/userfiles/file/44059367259.pdfIn PDF document text
  • http://sadiqandsons.com/userfiles/files/kuzobonimigelojiweviv.pdfIn PDF document text
  • http://kondicionery-vidnoe.ru/upload_picture/file/41838906343.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=minecraft+mods+17.10PDF 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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