Malicious PDF — malware analysis report

Static analysis result for SHA-256 c71e23229b8a5a16…

MALICIOUS

PDF

124.5 KB Created: 2021-12-12 14:30:03 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-04-30
MD5: 27285d994a3734c879fd3e956c231920 SHA-1: 0a2675b571b44d4e493c5e392184a25b0a6c72cb SHA-256: c71e23229b8a5a1620982a0ed6345cb30d4d07cd54b86aeda82cb5605c9ce9a6
67 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0025

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=123&isbn=9798666828663&kwd=365%20Timeless%20Appetizer%20Recipes%20:%20A%20Timeless%20Appetizer%20Cookbook PDF link annotation
    • https://static.s123-cdn-static-b.com/uploads/4665659/normal_61b40c72b3d31.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4672699/normal_61b448416861c.pdfIn PDF document text
    • http://getpdf.pw/book?res3&isbn�98666828663&kwd65%20Timeless%20Appetizer%20Recipes%20:%20A%20Timeless%20Appetizer%20CookbookIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off000188db.bin)

Related samples 6

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_off000188db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x188DB 22644 bytes
SHA-256: 3721ae59725ca65855d222d2d880e0d782c230406b719e449867fdecd88a6555
font_01_sfnt_off0001bdd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BDD2 21284 bytes
SHA-256: ac5e787436d60fc13b7d195049316cbd66da4e5ad73eccc9a0a08a8a4b5fbb46

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