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://zetidikusas.weebly.com/uploads/1/3/4/7/134740093/sezanuxuselip_litumafez.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://zajinet.ru/strik?utm_term=what+are+the+top+5+critical+thinking+skills PDF link annotation

  • https://zetidikusas.weebly.com/uploads/1/3/4/7/134740093/sezanuxuselip_litumafez.pdfIn PDF document text
  • https://xemilesexevig.weebly.com/uploads/1/3/4/2/134266110/9b4f63c9691fe99.pdfIn PDF document text
  • https://sarotokatot.weebly.com/uploads/1/3/2/6/132682281/sujesu_buzunokogofeni.pdfIn PDF document text
  • https://kowevufewes.weebly.com/uploads/1/3/4/3/134388306/tadela.pdfIn PDF document text
  • https://nulebuset.weebly.com/uploads/1/3/1/4/131411431/ligunuleva.pdfIn PDF document text
  • https://nufewaxitobazat.weebly.com/uploads/1/3/4/7/134748461/xirumuje-mogafanep.pdfIn PDF document text
  • https://wisolowiguwo.weebly.com/uploads/1/3/4/6/134630140/cfa2df269.pdfIn PDF document text
  • https://zuverefexogi.weebly.com/uploads/1/3/4/3/134316215/e8fcc846.pdfIn PDF document text
  • http://tokivaburag.22web.org/64643911136.pdfIn PDF document text
  • https://lefesime.weebly.com/uploads/1/3/4/8/134882546/xuwij_pevekenumu_josilewad_rejewoziladofu.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/cc87a552-dbb0-44f1-bcb8-b49a767ea907/what_is_the_difference_between_romanticism_and_dark_romanticism.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/daf8f5f7-8d1a-4ead-829d-c2ce81bad74d/89715033799.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/18de6ec8-9a99-43cc-a7a2-83dae4615e29/pozusoner.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a21189d1-a456-45bd-82c5-ea5c56ddadab/pipajabutorosozubemuge.pdfIn PDF document text
  • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_172a6d131af74530a91578839b624e48.pdf?index=trueIn PDF document text
  • http://zeliganav.epizy.com/pudowinepiv.pdfIn PDF document text
  • https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_a1491d4eedd745ab8f8b6720f0b3ed7d.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/619bb174-6d15-4565-b5eb-d732cb060136/kozasizisitusiwutilofa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a94e52cf-e0ed-4c87-abb4-1b12b1f7ab80/mivokijilujivoxikifugaru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dbca4f53-e15e-4db9-9c17-986d3f11a758/50207509740.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d6126c3-d336-4044-a9ea-87ca9a515aa3/nortel_m3904_quick_reference_guide.pdfIn PDF document text
  • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_00bb750178734154814e62ae63011d2e.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/989250de-c5e9-4c43-9194-0ce3387ec106/special_right_triangles_worksheet.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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