Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3579410a961965…

MALICIOUS

PDF

85.8 KB Created: 2021-12-08 10:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-03
MD5: a6ef52d38254cae4ff0ac6552648397d SHA-1: 1f0ff27e95ec8fba418c2091acdb8a0f5ef6d97e SHA-256: 5f3579410a961965978bc83136e53afa7b6835be71fac0c4d15bcb1bd37a57ba
67 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0410

Heuristics 5

  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • PDF links to disposable redirector campaign host medium PDF_DISPOSABLE_REDIRECTOR_CAMPAIGN
    PDF's outbound link points to a throwaway redirector domain that recurs as the sole redirect across a large family of otherwise unrelated spam PDFs (movie-piracy, affiliate, and viral-link lures). These domains appear on no reputable list and exist only to funnel openers into malvertising / scam / download chains.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://getpdf.pw/book?res=strik&isbn=9781501321641&kwd=Color%20and%20Design%20:%20Bundle%20Book%20+%20Studio%20Access%20Card PDF link annotation
    • https://static.s123-cdn-static-a.com/uploads/4660079/normal_61afa5ed02db6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4660437/normal_61af7365f3c3b.pdfIn PDF document text
    • https://static.s123-cdn-static-a.com/uploads/4661044/normal_61af965cb7be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4660785/normal_61afb3f402449.pdfIn PDF document text
    • https://static.s123-cdn.com/uploads/4661499/normal_61afbc23dd834.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c192ebfb-cfb4-4933-9076-f7094bab7496/dawn-chorus-a-sound-portrait-of-a-british-wood.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off0000fb56.bin)

Related samples 8

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_off0000fb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB56 22124 bytes
SHA-256: ea6dc5320e789daa326e3445d34af57231d00c74f8752a68fef373a7ac4e6b0b
font_01_sfnt_off00012eac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EAC 18028 bytes
SHA-256: 8295299bb3caff17cec747c923d9a91c0a2a4e3d25530ad4fd016f0f718cc83a

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