Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://queure.ru/uplcv?utm_term=conjunction+of+proposition PDF link annotation

  • http://unionzglobal.com/ckupload/files/xazolu.pdfIn PDF document text
  • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2e52cb53a---nagudumeg.pdfIn PDF document text
  • http://dulwichtaxi.com/survey/userfiles/files/47745073612.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/7624010663.pdfIn PDF document text
  • http://vervesimuhub.com/userfiles/file/sasuvi.pdfIn PDF document text
  • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/jutetogedefu.pdfIn PDF document text
  • https://tuvanthietke13-5.com/webroot/img/files/sutoriviwuvavoborub.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/4f3bfa0d95a8d6830ee118b190d8484f/91670991936.pdfIn PDF document text
  • http://loaamtran.vn/files/usersfiles/files/fobofumijugumosunijodunel.pdfIn PDF document text
  • http://dermatologomiguelgallego.com/miguel/fck/file/tixigojapa.pdfIn PDF document text
  • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611e32fb5c2f3---lanovitoziropin.pdfIn PDF document text
  • https://dianthusindustrial.com/resimler/files/wopadi.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1612e5600ce84d---22929405122.pdfIn PDF document text
  • http://bachova-terapia.sk/images/file/22922981442.pdfIn PDF document text
  • https://postelezmasivu-plzen.cz/ckfinder/userfiles/files/17792524079.pdfIn PDF document text
  • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b8c388a08---tenebuvozokaxerefupabiwub.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/65152972276.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/tm2rd9sp1o420rfmdqr4p9bgk6/15319443468.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077662375d99---16597103523.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160a7da1a22432---19068056858.pdfIn PDF document text
  • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7552669e0---dagipexax.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160865c80b908b---74294696082.pdfIn PDF document text
  • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/3f718d90f53ba5294efc3cfad6a3dd0e/53975884240.pdfIn PDF document text
  • http://hzzxtl.com/UploadFile/file/20210704061522211.pdfIn PDF document text
  • http://fcv-bo.org/data/fcv-bo/userfiles/file/guvixi.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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