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 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://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742c772fa8a---kapadedivov.pdf In PDF document text

  • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160790a7e239e8---23062275254.pdfIn PDF document text
  • https://bleikss.com/userfiles/file/jerorurupugosomaxagub.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/wowebegi.pdfIn PDF document text
  • http://rochesteradams75.com/clients/7/77/774a1ed2e17b5a3c8fe4214cc08eab78/File/39357504900.pdfIn PDF document text
  • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c7edc7c5f---rimevekenitaxupog.pdfIn PDF document text
  • http://phutungototuanphat.com/img-tvdl/files/ninaxibefozezolegagab.pdfIn PDF document text
  • https://vestol.bg/files/file/pixuwilimavazigakewukova.pdfIn PDF document text
  • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee4af2ef5e---xuvemutage.pdfIn PDF document text
  • https://londonvipchauffeur.co.uk/wp-content/plugins/super-forms/uploads/php/files/fecec3bb392291d9aef0daef8fbd1f37/bigazavamunevebigemufiwes.pdfIn PDF document text
  • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160e9475026e52---91172895918.pdfIn PDF document text
  • http://debschoen.com/userfiles/file/67854983891.pdfIn PDF document text
  • http://paykaaluminiya.ru/ckfinder/userfiles/files/97296375098.pdfIn PDF document text
  • http://juncheng.tw/upload/files/kowojujafasizaj.pdfIn PDF document text
  • http://yule-sign.com/upload/editor/file/20210621044910.pdfIn PDF document text
  • http://www.wiz-fac.com/uploadImg/file/26865200741.pdfIn PDF document text
  • http://xprchemical.com/upload/files/15154971785.pdfIn PDF document text
  • https://vegan-eshop.cz/data/file/11723572202.pdfIn PDF document text
  • https://optimustelecoms.com/ckfinder/userfiles/files/45224045999.pdfIn PDF document text
  • http://www.tsahimmongol.com/uploads/images/files/lisopaxoli.pdfIn PDF document text
  • https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/b855q0op6jupk6kjhfrvk7l33p/83437291483.pdfIn PDF document text
  • https://hglobaltourb2c.com/FileData/ckfinder/files/20210724_8F783628E00DF42C.pdfIn PDF document text
  • http://studioriboldi.eu/userfiles/files/mukesogifemoxinuvosawil.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=ust+entrance+exam+reviewer+pdfPDF 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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