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 https://medvor.ru/uplcv?utm_term=spider+man+total+mayhem+aptoide PDF link annotation

  • http://alnadaoil.com/userfiles/file/24647295463.pdfIn PDF document text
  • https://dbhattacharjee.com/ckfinder/userfiles/files/barikemitulikoberifikoduj.pdfIn PDF document text
  • http://wonsakai.com/uploads/files/weleli.pdfIn PDF document text
  • http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/movopixalafexa.pdfIn PDF document text
  • http://robalton.es/Albums/images/file///85843608806.pdfIn PDF document text
  • http://jysfh.com/upload_fck/file/2021-9-13/20210913141351385820.pdfIn PDF document text
  • http://saltokisport.com/uploads/files/83103508426.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/66191392638.pdfIn PDF document text
  • http://uhorder.com/upload/files/59602682616.pdfIn PDF document text
  • https://lienlacanien.com/img_pages/file/nagavaluxarijadosolofo.pdfIn PDF document text
  • http://twfbs.com/ckfinder/userfiles/files/sovisup.pdfIn PDF document text
  • http://studiotecnicofrisoli.com/userfiles/files/zaluro.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16131a5159e054---63440326224.pdfIn PDF document text
  • http://c2r-auto.com/uploadfiles/file/2021090711575873499.pdfIn PDF document text
  • https://bcm.es/files/galeria/files/zifekafejewuloguzizujafif.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/e1b045bc8492f64f3478c67a02af1c36/64570922874.pdfIn PDF document text
  • http://keralastatetailorsassociation.com/userfiles/file/paremoribakerofezuxojef.pdfIn PDF document text
  • https://cafemocion.com/userfiles/file/29499797929.pdfIn PDF document text
  • https://citrasas.com/ckfinder/userfiles/files/31815079879.pdfIn PDF document text
  • http://emblem4home.com/UserFiles/Member/File/31927415496.pdfIn PDF document text
  • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614147e72e406---lalunufoxepejumalox.pdfIn PDF document text
  • http://vanillasky-ch.com/images/files/53235271629.pdfIn PDF document text
  • http://www.pilartangguh.com/file/teleru.pdfIn PDF document text
  • http://fasson.vip/images/editor/files/zafazatumedit.pdfIn PDF document text
  • http://monarchiaerembolt.hu/tmp/talelupixeni.pdfIn PDF document text
  • http://tdjl.com/uploadfile/file///2021090604342358.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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