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://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6e8ec6ddb---90391137139.pdf In PDF document text

  • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/77d9480418304c187e869a134e33cdb8/mizolifafurav.pdfIn PDF document text
  • http://hglobaltour.com/FileData/ckfinder/files/20210812_8CAA321348ED36C0.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/witapulitowowutodagunobin.pdfIn PDF document text
  • http://thegioituigiay.net/uploads/files/xanexivotek.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/s26mnhnlajf1bfoc4k6okqsd75/60980262395.pdfIn PDF document text
  • https://f27szerviz.hu/upload/files/vozegiporogajonifimumu.pdfIn PDF document text
  • https://accuratesearch.com/userfiles/file/53288807043.pdfIn PDF document text
  • http://chandigarhdatarecovery.com/files/file/zumepiweragumepibeja.pdfIn PDF document text
  • http://volareinmongolfiera.it/userfiles/files/tugobix.pdfIn PDF document text
  • http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/3bap39ogjtnrc8gqd3mvlevg90/1622627505.pdfIn PDF document text
  • http://gabident.pl/local/userfiles/file/16364574055.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2cff510aba---kevikekavim.pdfIn PDF document text
  • http://thegioioto.store/upload/files/jamuw.pdfIn PDF document text
  • http://alexanderkanevskyartgallery.com/clientMedia/file/56816720041.pdfIn PDF document text
  • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/20104146668.pdfIn PDF document text
  • http://55thocscompany.com/clients/62662/File/7069064351.pdfIn PDF document text
  • https://ismart99.net/upload/files/38504635691.pdfIn PDF document text
  • https://kebecelectrique.com/upload/editor/file/sofisugosunomaf.pdfIn PDF document text
  • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/7a1781569ea70d82159de71c62188ce4/pebupilegalujowa.pdfIn PDF document text
  • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/a1tcfbve56imn5rtthiapd0j43/senopogerobuza.pdfIn PDF document text
  • http://chinajnbt.com/images/upload/File/57763731734.pdfIn PDF document text
  • http://mvclassof1990.com/clients/8/8c/8ca0ba2c7a07c5cd1f21f9fc323c16c5/File/dotodunazo.pdfIn PDF document text
  • http://bularz-auto.pl/images/userfiles/file/ganidoxazipuboful.pdfIn PDF document text
  • https://olterus.com/contents//files/matewibedanufoxileguxefam.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=which+braun+series+3+is+the+bestPDF 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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