Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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=showcaller+premium+apk PDF link annotation

  • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/navasorejubalisaj.pdfIn PDF document text
  • http://interel-rus.ru/test/sites/default/files/file/datulevonure.pdfIn PDF document text
  • https://martensmgt.com/business_school/uploads/file/gimelurelumomujapuduwizig.pdfIn PDF document text
  • http://akvari-um.ru/userfiles/file/15420844416.pdfIn PDF document text
  • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/6eb0c211b349900d26cb535c95d2ae32/doroteruzij.pdfIn PDF document text
  • http://sieuthivatlieuhoanthien.com/upload/files/87586946708.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614836f85d2e8---tejupowugadefadar.pdfIn PDF document text
  • https://nepalihemp.com/ckfinder/userfiles/files/sevotezav.pdfIn PDF document text
  • http://178.62.148.222:300/ckeditor/ckfinder/userfiles/files/53326302072.pdfPDF link annotation
  • https://kettosallampolgarsag.net/imagini_ws/80881684921.pdfIn PDF document text
  • http://britishcytology.org.uk/ckfinder/userfiles/files/4061374653.pdfIn PDF document text
  • http://diplomat2014.ru/ckfinder/userfiles/files/57646705439.pdfIn PDF document text
  • http://w3-japan.com/js/upload/files/33428089795.pdfIn PDF document text
  • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130490a55e9d---50596062513.pdfIn PDF document text
  • https://ita.kru.ac.th/ckfinder/userfiles/files/kinixijafosuvufoxofav.pdfIn PDF document text
  • https://path.mn/userfiles/files/14925076229.pdfIn PDF document text
  • https://bongkartuantakur.com/contents/files/32694186718.pdfIn PDF document text
  • http://gamax-moto.cz/data/dokumenty/ratenisosotelodipevifewig.pdfIn PDF document text
  • https://auditorescr.com/ckfinder/userfiles/files/fuwolufakitoj.pdfIn PDF document text
  • http://duet-czluchow.pl/userfiles/file/9106838893.pdfIn PDF document text
  • http://bezpiecznamlodosc.org/files/file/susemululuvetarulajirine.pdfIn PDF document text
  • http://hasdeu.md/data/userfiles/files/65769860689.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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