Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://ripuzawono.weebly.com/uploads/1/3/4/1/134108942/222b9.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://dafemum.ru/strik?utm_term=similarities+between+electrolytic+cell+and+electrochemical+cell PDF link annotation

  • https://ripuzawono.weebly.com/uploads/1/3/4/1/134108942/222b9.pdfIn PDF document text
  • https://xuxerativizujaf.weebly.com/uploads/1/3/1/0/131070719/tekefosija_vejepizipiropar_desarilozi.pdfIn PDF document text
  • https://kefepifumadig.weebly.com/uploads/1/3/1/3/131383651/3470470.pdfIn PDF document text
  • https://pexajutamog.weebly.com/uploads/1/3/4/7/134759810/49a95.pdfIn PDF document text
  • https://zonozedu.weebly.com/uploads/1/3/0/8/130874021/rajuzofitiro-pogelumusute-dejewixezefi.pdfIn PDF document text
  • https://kazenatujexisof.weebly.com/uploads/1/3/1/6/131637291/7d206.pdfIn PDF document text
  • https://velumosatowe.weebly.com/uploads/1/3/4/8/134883763/c737dcceb.pdfIn PDF document text
  • https://wevenakexeg.weebly.com/uploads/1/3/1/4/131438808/b635c6cb.pdfIn PDF document text
  • https://wojujasomiselok.weebly.com/uploads/1/3/4/4/134487215/mibezudijaso.pdfIn PDF document text
  • https://gesunewa.weebly.com/uploads/1/3/1/4/131438127/9709792.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/fc20a8d7-18a0-40d8-94c2-f08dfb914236/which_is_best_engineering_university_in_pakistan.pdfIn PDF document text
  • https://s3.amazonaws.com/loxopudizus/elaborately_transformed_manufactures_meaning.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/863cb972-efc1-440e-8612-e4894b73ef61/wc3_frozen_throne_cheats.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a8ecc352-e9f0-4679-aa10-8897824bbb7a/un_mundo_feliz_aldous_huxley_online.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5e73af76-1256-4772-89e9-268c81a6e6e7/ancient_greek_famous_artists.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/276c3e81-32e2-45b8-b789-d6285888a8e6/how_to_insert_sim_card_in_alcatel_one_touch_pixi_4_6.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3141b680-6ec8-4cbe-9fd8-15cf98e7cc74/79228478651.pdfIn PDF document text
  • https://s3.amazonaws.com/sefepugolupalax/sample_safety_interview_questions_and_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/23251a16-af6e-464b-be4f-611f9a01f37b/22951506293.pdfIn PDF document text
  • https://s3.amazonaws.com/sefukirexuwekij/kafka_on_the_shore_review.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b7c0df8b-cb4f-40ef-9f3c-53e6a30d7204/kixijasebamagajoli.pdfIn PDF document text
  • https://s3.amazonaws.com/vawoginele/vitizukawisimuwuje.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/93fae7df-3eb0-41a4-bb20-a9ae3fb7bf28/mbti_pie_chart_test.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/29524c95-afdf-44d3-b32d-6982a2db0e3e/how_to_join_the_bandidos_motorcycle_club.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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