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.
• 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.
• AcroForm button with action trigger low PDF_ACROFORM_BUTTON
  PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
• 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://synerhu.ru/pbw?utm_term=icse+grammar+exercises+with+answers+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4503987/normal_5fd5f8ca791be.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4482230/normal_5feb77e2c368c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4491933/normal_605a3c4419265.pdfIn PDF document text
  • https://gavaxavudo.weebly.com/uploads/1/3/4/5/134581950/4910216.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366350/normal_5fdc79ac9301d.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4419820/normal_5feb0e0b37927.pdfIn PDF document text
  • https://kojiwoxoposegig.weebly.com/uploads/1/3/4/1/134108885/fisokatubekorisuwa.pdfIn PDF document text
  • https://wugavebanolija.weebly.com/uploads/1/3/7/5/137500500/sitefir.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4423750/normal_60b4decfca117.pdfIn PDF document text
  • https://fasexonepagi.weebly.com/uploads/1/3/0/9/130969542/fomegesinatumet.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369796/normal_6038c6292f526.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://xegosigex.pbworks.com/f/nvidia_geforce_8400m_gt_drivers_for_windows_10.pdfIn PDF document text
  • http://kevuxezedila.pbworks.com/w/file/fetch/144470889/honda_cb_750_f_workshop_manual.pdfIn PDF document text
  • http://rasovuxosew.pbworks.com/f/oxford_picture_dictionary_workbook.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a99826f6-0a1b-4042-afc3-c4d9ae80018b/lokizorem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/622fe7f0-8124-4880-8d4b-c0941b711186/ziluxur.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cf300dc0-acd1-48ed-8f9a-fb6e48604452/wipovivubivi.pdfIn PDF document text
  • http://giwupiraride.pbworks.com/f/when_to_use_failure_mode_and_effects_analysis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ef1f876-6a62-4408-a8fa-6e0b4a554046/2006_honda_rancher_350_carburetor_hose_diagram.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b069ab5-e8d7-423b-a398-04f3320c49c9/i_want_to_read_48_laws_of_power.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6408d0bd-09bc-40a0-a295-370384a410aa/72265494485.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6c39dc1-0e9d-4b31-8e1d-02483611a727/the_hundred_thousand_kingdoms_review.pdfIn PDF document text
  • http://sikovifif.pbworks.com/w/file/fetch/144476835/mapamundi_con_los_tropicos_de_cancer_y_capricornio.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5691eca-3f24-4733-af1f-191926d09044/58405628769.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

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