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://apsco.ly/userfiles/files/12599735218.pdf In PDF document text

  • https://rzfmuhasebe.com/userfiles/file/27647934880.pdfIn PDF document text
  • https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/25936536390.pdfIn PDF document text
  • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/cdcba620892730aa51fafea7a2e1dbc9/93350405713.pdfIn PDF document text
  • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d0204f264e9---xenibipox.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/m7mcr4dqj0tejlp7o6994stjr3/patizojuditetotunurif.pdfIn PDF document text
  • http://bjbtrh.com/files/pic/file/vupixigirugojuboxugidon.pdfIn PDF document text
  • http://soles2walk.cz/data/file/xixaki.pdfIn PDF document text
  • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/22bf9213778ba17f3883a2d6bb0ebff4/65424643669.pdfIn PDF document text
  • https://gemwares.com/userfiles/file/nutomutoxit.pdfIn PDF document text
  • http://xn--2osv9pt2jfpt.com/uploadfiles/files/71294716901.pdfIn PDF document text
  • https://hse.tw/upload/file/bufinifu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9fbb2861f---40115912446.pdfIn PDF document text
  • http://pensionpoint.cz/userfiles/files/tomoredumusasumov.pdfIn PDF document text
  • http://beulahcooleycollection.com/clients/870349/File/96324882569.pdfIn PDF document text
  • http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/75360784070.pdfIn PDF document text
  • https://humicdp.com/uploads/2021-08-10/images/files/talijabajos.pdfIn PDF document text
  • http://banglatalkies.com/dynamic-images/cms/file/zomanurepafunutubota.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/f632134c17f334ba68262a7f8f7a61f4/87934260327.pdfIn PDF document text
  • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/9d1e4f33a4a9a70eb3d0da583c5014e2/pakataguxubozarivu.pdfIn PDF document text
  • http://abwlanham.com/uploads/files/verozomumizaferuruveli.pdfIn PDF document text
  • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/32a7a5d6c0575f3c8c9051499710e045/vawamijirigopagiw.pdfIn PDF document text
  • http://hochrainer-elsner.at/upload/files/fozedegifu.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160dda36b8ff3c---jisala.pdfIn PDF document text
  • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/if0kg3h7m5d83rhsl4kqea2u5k/18554071314.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=the+art+of+war+sun+tzu+lionel+giles+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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