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 https://infrive.ru/uplcv?utm_term=free+phone+spying+apps PDF link annotation

  • http://www.moyekolodin.com/files/gesenibujotekopidujosef.pdfIn PDF document text
  • http://xutricolor.com/uploadfile/files/94614526635.pdfIn PDF document text
  • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614144b7c267f---68101825703.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d01f4699c5---8986594679.pdfIn PDF document text
  • http://vipacademy.org/userfiles/file/gutito.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/22970100098.pdfIn PDF document text
  • http://zpkprzemysl.pl/ckfinder/userfiles/files/80163117492.pdfIn PDF document text
  • http://omni-links-europe.com/images/blog/file/58760485178.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/daa9ca824964426fa44f00147c4a2ee7/49521601816.pdfIn PDF document text
  • https://sfeerweter.nl/userfiles/files/basorunutajazusuneju.pdfIn PDF document text
  • https://suacuachuyennghiep.com/uploads/files/wapupekatonabeloxukopat.pdfIn PDF document text
  • http://wowbond.com/upload/Fckeditor/file/40531177998.pdfIn PDF document text
  • https://deepex.hu/hirek/files/5911845536.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/668b17f0cd1e9e2794fe06146e8db1bc/nuzejifogupuxagamixom.pdfIn PDF document text
  • https://smartcirclegroup.com/userfiles/file/30764743079.pdfIn PDF document text
  • http://grgct.com/ckfinder/userfiles/files/12769832229.pdfIn PDF document text
  • http://ahzycw.com/upload_fck/file/2021-9-7/20210907022323439620.pdfIn PDF document text
  • http://3wsystems.com/shipinc/userfiles/files/18239415135.pdfIn PDF document text
  • https://tw-itemaos.com/ckfinder/userfiles/files/sukumi.pdfIn PDF document text
  • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613542516a66c---44990306981.pdfIn PDF document text
  • http://www.bandungmesin.com/file/luxebeginafodulipugiwa.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea59297f04---jujibatunudole.pdfIn PDF document text
  • https://ctapigroup3.com/contents/files/56034024112.pdfIn PDF document text
  • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ea1152e0a1---legakepobuza.pdfIn PDF document text
  • https://yodobashi-church.com/rovezogubezu.pdfIn PDF document text
  • http://www.azurwelcomeservices.com/userfiles/file/sukenumewirexup.pdfIn PDF document text
  • 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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