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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://vilenefex.ru/123?utm_term=4k+video++website+list PDF link annotation

  • http://tapagigozi.medianewsonline.com/21906798593.pdfIn PDF document text
  • http://liwitesuzemumex.sportsontheweb.net/the_book_of_life_cast_meme.pdfIn PDF document text
  • https://cdn.sqhk.co/fajoliteve/qKgjdql/jopewotoxuwivufoku.pdfIn PDF document text
  • https://cdn.sqhk.co/pifixijowoka/3wXxVT5/medical_dictionary_app_download_for_mobile.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/vexeliku/nike_air_force_1_07_mid_white_trainers_womens.pdfIn PDF document text
  • https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_94ba1eece7c74953b82eda06ed4690bc.pdf?index=trueIn PDF document text
  • https://99470c7d-c692-4648-a7b8-36ea19db2883.filesusr.com/ugd/ab059d_ae0001b4dae9407e81ad19eb717b3f3c.pdf?index=trueIn PDF document text
  • http://tawazowifow.rf.gd/42732083525.pdfIn PDF document text
  • http://bupalim.atwebpages.com/31793478739.pdfIn PDF document text
  • https://13ea8442-998f-4f14-ba3b-7f37e53a414c.filesusr.com/ugd/008a9f_2f335e59d95b4e8094fa5a623c5f1610.pdf?index=trueIn PDF document text
  • https://a97be2a3-bfb5-42de-bba9-b145341b31aa.filesusr.com/ugd/1f2860_ba6d801dd8e44974b2d8715de7f957d7.pdf?index=trueIn PDF document text
  • http://ligoroxenafof.atwebpages.com/guitar_tabs_lick_it_up_kiss.pdfIn PDF document text
  • https://1f49b3f1-4b09-4f89-88df-03804352fc9a.filesusr.com/ugd/a51aec_c0b84f0d61bb40498bacfdfc0c20a590.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/tapelu/zaner_bloser_handwriting_worksheets_free.pdfIn PDF document text
  • http://poresiz.epizy.com/food_additives_in_meat_products.pdfIn PDF document text
  • https://44dd6259-7513-41c7-b2f1-b2b1fc385d2e.filesusr.com/ugd/63022f_00b17ee7554648fb822a79f3589cccf5.pdf?index=trueIn PDF document text
  • https://c7fb3737-a2fb-4e06-b71d-f78b648bb0a4.filesusr.com/ugd/a9248e_e73c4c417d1a4507a9e908ea2e4af7ff.pdf?index=trueIn PDF document text
  • http://merizipu.rf.gd/coplanar_waveguide_line_or_microstrip_line.pdfIn PDF document text
  • https://2eda13a9-9e0f-47dd-bbfa-a9a5028a3314.filesusr.com/ugd/61c57f_068496bd6944468f9cb72517995db173.pdf?index=trueIn 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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