Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://leonvi.ru/123?utm_term=autocad+2018++and+install+permanently PDF link annotation

  • http://tafuxasomup.getenjoyment.net/tutorial_c_language_programming.pdfIn PDF document text
  • https://cdn.sqhk.co/goronikel/ePETJtx/wuvivewebonowu.pdfIn PDF document text
  • http://vipimuxatomefi.medianewsonline.com/44422838646.pdfIn PDF document text
  • https://cdn.sqhk.co/bebomopakax/gjDiNhi/82151840868.pdfIn PDF document text
  • https://cdn.sqhk.co/dasotipamu/Mhcgcpa/tiny_home_builders_gainesville_fl.pdfIn PDF document text
  • https://cdn.sqhk.co/rojarimeg/UA2hi2c/32337597756.pdfIn PDF document text
  • http://lazirog.mywebcommunity.org/fumarejagop.pdfIn PDF document text
  • https://cdn.sqhk.co/xaranoraf/egjNEig/spelling_game_for_2nd_graders.pdfIn PDF document text
  • http://zemesod.getenjoyment.net/programing_abstractions_in_c.pdfIn PDF document text
  • https://vugadeji.weebly.com/uploads/1/3/1/4/131406436/783de39c9d2.pdfIn PDF document text
  • https://totaduwuvib.weebly.com/uploads/1/3/0/9/130969262/6680489.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://14864a69-2465-45da-a912-c6f78a3f99b9.filesusr.com/ugd/409ca8_5534015314de4ab7a04b24b345175b47.pdf?index=trueIn PDF document text
  • http://wusumuforibit.epizy.com/best_online_english_speaking_course_for_beginners.pdfIn PDF document text
  • https://dce579ed-4708-43c3-aaeb-2c76a6268d78.filesusr.com/ugd/944939_918383672408421ea882b7240dd58dde.pdf?index=trueIn PDF document text
  • http://pojesonedako.epizy.com/55619218876.pdfIn PDF document text
  • https://67a4337f-2b79-4d04-9c1d-2578c80f4945.filesusr.com/ugd/964009_dada7245639c49469be61a7bcd4e2ab3.pdf?index=trueIn PDF document text
  • http://wilaroxu.atwebpages.com/adaptec_8805.pdfIn PDF document text
  • http://repogadobuwiri.epizy.com/zabobarowajaroxanorudem.pdfIn PDF document text
  • https://01dc7cc6-b8ed-446e-8cc8-1ad78882ed38.filesusr.com/ugd/e23fbb_35c227bc7d594c09a6978dfd5f74892c.pdf?index=trueIn PDF document text
  • http://bapifodog.epizy.com/boonie_bears_tamil_dubbed_movie.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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