Malicious PDF — malware analysis report

Static analysis result for SHA-256 450f0f88c99d21ef…

MALICIOUS

PDF

41.5 KB Created: 2020-10-10 12:29:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-25
MD5: 9bd5eee25620d85770f07d7b81479423 SHA-1: 219d2d4c1244dd400c8170e2b1bc6a60ae61d6cf SHA-256: 450f0f88c99d21ef99904a2de62fbec4b71cbbb1899d91b86f93dd79ad3147c2
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=1+defence+pure+guide In PDF document text
    • http://files.kevmol.com/uploads/1/3/0/7/130775607/8447805.pdfIn PDF document text
    • http://zurala.goethefruehlingsfest.com/uploads/1/3/0/7/130738748/1fc730503d6.pdfIn PDF document text
    • http://files.revivalseedco.com/uploads/1/3/0/8/130813539/5f2c0.pdfIn PDF document text
    • http://files.cozykidsembroidery.com/uploads/1/3/0/7/130776720/5e1dcc75.pdfIn PDF document text
    • http://nisemax.avian.dk/uploads/1/3/1/1/131163930/wanem.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006753.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006753.bin)
    • https://uploads.strikinglycdn.com/files/741c2693-ef19-4199-ab82-b6061c29f997/sezefurep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f177507b-b7f0-48b1-b3bd-ebdf951d2217/54185484674.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a220e2f-d446-4e33-850a-cfedb4870ee0/zenuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7a08a56-6205-4566-9047-0e39a333694d/wikisovowubedurosevo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcef6e0e-5f6b-491e-8224-b95da0665425/6854057540.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfc8c8f0-e1b2-4c98-a10f-139861ea2984/pakimedijufowarexaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff73fcae-42b4-490d-93e0-59a328c8cea9/momabubarixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1e54b77-235c-47d0-ba21-4500ab4f9a91/bokabiwazesupavix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/712f21e3-4bf9-46c8-a138-aeb02e9ce36f/35659947815.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_off00006753.bin)

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6753 4860 bytes
SHA-256: 393da085ef6abac3f41d235ce36de330dc6f96bf3d2a00736b03dcc9c43a8686
font_01_sfnt_off000077ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EA 9988 bytes
SHA-256: afc138580b656bdabbd206ef648d9e5e3b546c07dc0b72ed6d5b97389451b375

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