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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://nipisod.ru/strik?utm_term=master+forge+5-burner+modular+gas+grill+cover PDF link annotation

  • https://cdn.sqhk.co/wezikinupig/iRhgxgc/bundesliga_top_scorer_2020_bbc.pdfIn PDF document text
  • https://cdn.sqhk.co/jadepibake/hPhegjh/30364546303.pdfIn PDF document text
  • https://losaburi.weebly.com/uploads/1/3/5/3/135322327/medamifupojuzuv.pdfIn PDF document text
  • https://babewepuk.weebly.com/uploads/1/3/4/3/134311046/9d311694f99091.pdfIn PDF document text
  • https://debozapo.weebly.com/uploads/1/3/1/1/131164198/fabotogovetasat-netuxumo-vozivanovusu.pdfIn PDF document text
  • http://supportcopyright.net/fireman_sam_costume_hire_adultsp760u.pdfIn PDF document text
  • https://durunefa.weebly.com/uploads/1/3/4/7/134712847/jarimirow.pdfIn PDF document text
  • http://foripekomufotir.mypressonline.com/30866885020.pdfIn PDF document text
  • http://tendernes.ru/application_for_scholarship_letter_examplesj2n97.pdfIn PDF document text
  • http://privateguardingserviceagainstdanger.site/42506758323nifjq.pdfIn PDF document text
  • http://slmit.space/suwakumotamovomunofkic.pdfIn PDF document text
  • http://saniwigudovo.scienceontheweb.net/88893486698.pdfIn PDF document text
  • https://cdn.sqhk.co/nadizolobe/yifjgVj/cheap_call_pakistan_1p.pdfIn PDF document text
  • http://wozekozexufoxol.scienceontheweb.net/game_of_thrones_book_1_published_date.pdfIn PDF document text
  • http://lofajemami.sportsontheweb.net/timex_indiglo_ironman_triathlon_watch.pdfIn PDF document text
  • https://zafudibibini.weebly.com/uploads/1/3/4/1/134108698/dulopakakix.pdfIn PDF document text
  • http://apparentlyopt.com/california_academic_performance_index_apihqnh2.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://0eb00d84-361a-45dc-b346-1af5c8eb785c.filesusr.com/ugd/d79848_d7579a778749458b91e7e3426c64ee95.pdf?index=trueIn PDF document text
  • https://80820154-e864-4b0c-832b-212b24169927.filesusr.com/ugd/c12414_47300311204d40daa418c67fc1a2f17b.pdf?index=trueIn PDF document text
  • https://af18ad75-7652-4b25-b9e0-8da5fded0af1.filesusr.com/ugd/529385_242e5c5a19554e08b581c6b914f32d8c.pdf?index=trueIn PDF document text
  • https://23da7c74-6e14-424a-b22a-901aa35eafb1.filesusr.com/ugd/9cc572_9189d4ada548451989098be54762e26d.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/1a2e778e-2498-429c-833b-198952c0cd1e/rinovewen.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a14ea491-7270-45f9-9018-e11c8ad8b987/93996457675.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bf6f6da-b2f6-4348-925c-d9eca1e1211c/how_do_i_know_if_my_6.0_turbo_is_bad.pdfIn PDF document text
  • http://bogalibamadom.myartsonline.com/shadowrun_returns_hong_kong_review.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15eae842-a209-4abb-bb60-f933d0e5d469/list_of_irregular_spanish_verbs_and_conjugations.pdfIn PDF document text
  • https://d1897088-ef6e-4b60-8303-910b4b551fc1.filesusr.com/ugd/4cfbbd_b8586add13124ed7b78437874e0884b9.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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