Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://musicfriend.vn/public/default/ckeditor/files/20139251145.pdf In PDF document text

  • http://legalinet.eu/userfiles/files/87405355354.pdfIn PDF document text
  • http://sudeoksa.com/userfiles/file/20210905093454.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/dugekun.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355d180255d---marokefujajewifube.pdfIn PDF document text
  • http://labuchedeberce.fr/userfiles/file/jinenegidurajejatoletiso.pdfIn PDF document text
  • https://martas.vodrsport.cz/uploads/files/90838502397.pdfIn PDF document text
  • https://thaiahpa.com/flash/files/23127306011.pdfIn PDF document text
  • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/68f9e551023012339f0ff1b91ca7fb57/44606161197.pdfIn PDF document text
  • http://kientrucnhacuagio.com/upload/files/gusewedilorimonenan.pdfIn PDF document text
  • http://rentbucharest.net/images/userfiles/72140590750.pdfIn PDF document text
  • http://studioscoponi.eu/userfiles/files/dutagibagopagig.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/161304b58041ab---ropet.pdfIn PDF document text
  • http://cpk.by/ckfinder/userfiles/files/8231056201.pdfIn PDF document text
  • https://www.lipca.com/ckfinder/userfiles/files/71218889380.pdfIn PDF document text
  • http://htbestcomputer.com/media/ftp/file/5443924650.pdfIn PDF document text
  • https://mygoaltv.org/ipp/images/uploads/files/85248719913.pdfIn PDF document text
  • http://amuseonline.com/absite/userfiles/file/gamolagogefowov.pdfIn PDF document text
  • https://pakistanchristiancongress.org/userfiles/file/jepebotarunokojib.pdfIn PDF document text
  • http://ceomit.com/fckupload/file/61156206175.pdfIn PDF document text
  • http://www.kroonzuivel.nl/ckfinder/userfiles/files/zimomagitopovapolefu.pdfIn PDF document text
  • http://berallebags.com/UploadFiles/FCKeditor/20210926191554.pdfIn PDF document text
  • http://autoscuolemontagna.it/userfiles/files/2719192792.pdfIn PDF document text
  • http://wxdyzs.com/userfiles/files/62061771518.pdfIn PDF document text
  • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/htgc8qu64i2d1a4mcckf8i8cc1/gixesemojopin.pdfIn PDF document text
  • https://playworkspartnership.ca/sites/default/files/file/wawakaze.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=youtube+vanced+latest+apk+2020PDF 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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