Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
  PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
• 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://zajinet.ru/strik?utm_term=epson+wf-2530+driver PDF link annotation

  • https://wozuwonasanava.weebly.com/uploads/1/3/1/4/131483955/b42852dd83.pdfIn PDF document text
  • https://wovuwujofisup.weebly.com/uploads/1/3/1/8/131856276/kegugumezometov_bejibo_dedafafud.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392877/normal_604952edd92a7.pdfIn PDF document text
  • https://lomagifotoji.weebly.com/uploads/1/3/0/8/130814873/rosuxifutejuru.pdfIn PDF document text
  • http://mrt-64.ru/hacks_for_shell_shockers8dfhu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446499/normal_60358032db73f.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4459481/normal_600292df58ea3.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4449417/normal_5ffd56dacfbb7.pdfIn PDF document text
  • http://microbladingcertificationdfw.org/17497338950fbm3l.pdfIn PDF document text
  • http://managerprogram.live/pabirukobakonosinuloxou0ufi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449605/normal_600ea77504779.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444100/normal_602204eb263c5.pdfIn PDF document text
  • http://vienvozvrat.site/similar_polygons_worksheet_houghton_mifflin9qtb7.pdfIn PDF document text
  • http://fullhp.info/advantages_and_disadvantages_of_payback_periodolok0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485579/normal_60396d7671bab.pdfIn PDF document text
  • http://airned.ru/what_are_some_good_books_to_read_for_adultsbwze0.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/4de48eef-90ef-40ea-a256-166502251ec3/11857296919.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7a45d9e-c3ac-447e-9e96-92432234c52b/nobedunomafetele.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b4f9209-f92d-49a8-a811-66dd6c028a9a/what_are_the_dimensions_of_an_apartment_size_stackable_washer_and_dryer.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bd1f24e4-5988-4a0b-bc22-fae8fc11e1e4/how_to_find_the_measure_of_each_angle_indicated_right_triangle.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec8c2818-040d-491c-af7c-95cff6601678/chemical_bonding_study_guide_answer_key.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://scripts.sil.org/OFLIn 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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