Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f34106f2290a8f…

MALICIOUS

PDF

32.6 KB Created: 2020-10-12 03:09:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-08
MD5: c832990b378a91222214d11f6e5305bc SHA-1: 1a32096332c29e6dea38e78b2d357f933b9eea20 SHA-256: 98f34106f2290a8f3b1601390c2e13faa5bf0aa787c11901d3adc3d9a5bfd824
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://gettraff.ru/strik?keyword=new+paltz+ny+obituaries In PDF document text
    • http://files.eldoradocountydoulas.com/uploads/1/3/0/7/130775052/jubukujebomurovodeg.pdfIn PDF document text
    • http://files.continuumsofservice.org/uploads/1/3/0/7/130739348/8115856.pdfIn PDF document text
    • http://files.olneyfarmersmarket.com/uploads/1/3/2/3/132302772/jeduvawilikoxebatudu.pdfIn PDF document text
    • http://tegitika.thetiegenfoundation.org/uploads/1/3/1/0/131071164/lawasetigoza_ligejup_kikojudokel.pdfIn PDF document text
    • http://files.angelaprior.com/uploads/1/3/0/8/130814408/49344b33f9d193.pdfIn PDF document text
    • https://site-1039748.mozfiles.com/files/1039748/23966427013.pdfIn PDF document text
    • https://site-1039330.mozfiles.com/files/1039330/39886539350.pdfIn PDF document text
    • https://site-1037010.mozfiles.com/files/1037010/vabofonukuxagulav.pdfIn PDF document text
    • http://zowujirex.drwordsmiths.com/uploads/1/3/1/8/131856194/tipupiroto.pdfIn PDF document text
    • http://biliri.sandrarutter.com/uploads/1/3/1/3/131379373/3f9fc1912d34.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004295.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004295.bin)
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/pond_ecosystem_gizmo_quiz_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4440/1052/files/15971187871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/schwann_cells_function_similar_to.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 extracted file (font_00_sfnt_off00004295.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4295 5164 bytes
SHA-256: 2833b47e9f9ed5472a92287d17a5bc2b1377b7299d87d5c23f965739010c0bd9
font_01_sfnt_off0000544c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x544C 9812 bytes
SHA-256: db3087e34e5ba7065ba8d7ced6e648dea8900dd913d8dda0460199643277acbf