Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://pelibifir.ru/123?utm_term=bribery+and+corruption+in+nigeria+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4381539/normal_603b3685b78f6.pdfIn PDF document text
  • https://tapinizeguzuj.weebly.com/uploads/1/3/4/4/134456840/83041aa7a500.pdfIn PDF document text
  • http://mobufuwiwid.medianewsonline.com/97971407167.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389601/normal_60295473d3a46.pdfIn PDF document text
  • http://vetobiz.sportsontheweb.net/riwagivobuvimitowewu.pdfIn PDF document text
  • http://pearhaidhr.fun/hd_600_reviewk5zsx.pdfIn PDF document text
  • http://ourfanz.com/482046410833fbmx.pdfIn PDF document text
  • http://privateguardingserviceagainstdanger.site/matthew_hussey_free4g7vn.pdfIn PDF document text
  • http://blognews.top/mosazepojifonuu4.pdfIn PDF document text
  • https://wevokowuluza.weebly.com/uploads/1/3/4/7/134739861/kevorutodojage.pdfIn PDF document text
  • https://nekamefirojes.weebly.com/uploads/1/3/0/7/130739169/guvabi.pdfIn PDF document text
  • http://consumer-data-protection-bureau.com/how_to_draw_a_photo_in_procreatea3x2q.pdfIn PDF document text
  • http://kanaxade.mygamesonline.org/taking_sides_clashing_views_in_sustainability.pdfIn PDF document text
  • https://wivevesatowot.weebly.com/uploads/1/3/0/8/130813399/a369e84.pdfIn PDF document text
  • https://tonuvufew.weebly.com/uploads/1/3/1/4/131438708/7297331.pdfIn PDF document text
  • http://chisto-chisto52.ru/mejiwidurt1ol5.pdfIn PDF document text
  • http://canlisohbetim.net/the_banking_concept_of_education_mla_citation8lk61.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365525/normal_605a270e81d38.pdfIn PDF document text
  • http://bubble1.space/crib_bedding_sheetsw7i3y.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://b6086c54-8ef4-40f3-ba18-bbbb993b339e.filesusr.com/ugd/36e927_2199a885283c4df18e21949cf540c9f7.pdf?index=trueIn PDF document text
  • https://ddb281da-11d2-423e-b83a-408ecf1f607f.filesusr.com/ugd/9db61c_b4b6403c4f304cb8a6f91a09bdb9c3ea.pdf?index=trueIn PDF document text
  • https://50037ee0-0691-4a53-bdc2-b2f8f795cfa6.filesusr.com/ugd/b41a9a_0c2ad44a7f30471d9ea72e1de57d4dbf.pdf?index=trueIn PDF document text
  • http://todiwefexoneb.atwebpages.com/91831351934.pdfIn PDF document text
  • https://bc732cde-fb09-4fee-8ab5-c82a45a1131b.filesusr.com/ugd/2ac701_1601455bc7ed444d871cf22f8be51aa7.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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