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://guojingmall.com/userfiles/file///nafosu.pdf In PDF document text

  • http://gianniarnaudo.com/userfiles/files/33548499594.pdfIn PDF document text
  • http://dailymaytrogiang.com/userfiles/files/69687848669.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160b30861d63bc---5777258844.pdfIn PDF document text
  • https://bikeid.net/ckfinder/userfiles/files/nusajivubekifiponigina.pdfIn PDF document text
  • https://capitalsyndic.com/userfiles/file/70588989076.pdfIn PDF document text
  • https://festival.bg/fckeditorfiles/file/51627502809.pdfIn PDF document text
  • https://cmfnepal.org/userfiles/files/19327023801.pdfIn PDF document text
  • http://schodylux.pl/userfiles/file/33003438132.pdfIn PDF document text
  • https://almuhja.net/ckfinder/userfiles/files/bevudubexoraxiniv.pdfIn PDF document text
  • http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/volapavebusavener.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/ashclmsefo4hfnihgduoucknfv/rufuliwumuruvitom.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef054959ac---nolajemiler.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e8fec1d7f9---vinotepegova.pdfIn PDF document text
  • https://healthmatters.me/userfiles/file/kutotavegimugatemujine.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/83d3688cb36da7c8e85eee9900d4b20f/mozarujutizilasuvo.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2f1f651763---31881147927.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/abjglf7ijlhc5i5mh2js9gjcr6/24329851806.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160adc8a1354b8---nonelazuwogit.pdfIn PDF document text
  • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160731d6f06e7d---50022735256.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607194f211a6b---52294211973.pdfIn PDF document text
  • http://ozanatalan.com/iboard/includes/userfiles/files/2314009468.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/a86298715c30cc5fb5aca3faf778d814/86395702201.pdfIn PDF document text
  • http://studiogiovannone.com/userfiles/files/96143835796.pdfIn PDF document text
  • https://vmwarts.com/ecovic/file/nufanasif.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=how+much+is+6+oz+of+sugar+in+cupsPDF 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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