Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://kavekoda.weebly.com/uploads/1/3/5/3/135326791/8080247.pdf.
• 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://jumiwimov.ru/wix?keyword=introduction+to+quantum+mechanics+questions+and+answers PDF link annotation

  • https://cdn.sqhk.co/vegedusovo/ghglihs/city_car_driving_simulator_free_download_full_version.pdfIn PDF document text
  • https://cdn.sqhk.co/fipimomozuk/ijbrbii/cataclysm_dark_days_ahead_chesthole_tileset.pdfIn PDF document text
  • https://cdn.sqhk.co/kogujipubap/idRsHje/53446649017.pdfIn PDF document text
  • https://cdn.sqhk.co/pijuvedozuw/jjFiOjd/dream_piano_music_game_mod_apk_download.pdfIn PDF document text
  • https://cdn.sqhk.co/xixujipum/ifjbhmR/donate_money_anonymously_paypal.pdfIn PDF document text
  • https://cdn.sqhk.co/lekusovu/jif441B/pikmi_pops_giant_flips_bunny.pdfIn PDF document text
  • https://kavekoda.weebly.com/uploads/1/3/5/3/135326791/8080247.pdfIn PDF document text
  • https://jupavovol.weebly.com/uploads/1/3/4/3/134314217/8273274.pdfIn PDF document text
  • https://cdn.sqhk.co/zirevazul/hdsKhjn/sejizifipazuwu.pdfIn PDF document text
  • https://ruzutemeba.weebly.com/uploads/1/3/2/6/132681300/xafoxokilom.pdfIn PDF document text
  • https://bativizamazon.weebly.com/uploads/1/3/4/7/134770744/bobirunozotisizuli.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/febopa/90750694943.pdfIn PDF document text
  • https://s3.amazonaws.com/bulozor/xaxalamolozitulunif.pdfIn PDF document text
  • https://e5baaea7-7007-41de-9367-4ebf3ed55875.filesusr.com/ugd/8e1900_e37382895c8c4ce3ac3377e66450cd74.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/lekezaru/happy_birthday_songs_2019.pdfIn PDF document text
  • https://0ef2f354-78a3-4528-990c-72f69c86fc6a.filesusr.com/ugd/6a0da6_0659a26a2c494cc5a838dc29b7482e34.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/xefezesebusu/14801092707.pdfIn PDF document text
  • https://3485775d-af35-4505-8fb4-f6750f575e04.filesusr.com/ugd/42f18e_1ad8bb11bef14009ad6cfcdc26b12335.pdf?index=trueIn PDF document text
  • https://62bfe9e3-d01a-456c-9d14-3ac71290fd99.filesusr.com/ugd/cfe640_233042e2e219463ab290d684a41f85f6.pdf?index=trueIn PDF document text
  • https://ede36962-9452-4451-b182-fa4236ba9bc6.filesusr.com/ugd/83b1b3_7f9b85f277124ed2927e4320d2dc16bc.pdf?index=trueIn PDF document text
  • https://84d51d8d-5932-465a-b044-5d36dace581c.filesusr.com/ugd/98e2de_861455bad41a4d5b891133912f8674cb.pdf?index=trueIn PDF document text
  • https://4c72699b-aa2e-4dc8-8bd5-1a54e8f938a6.filesusr.com/ugd/f3cb45_335d3edfd584431da6528c7db598d04c.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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