Malicious PDF — malware analysis report

Static analysis result for SHA-256 487c98e255f92d7c…

MALICIOUS

PDF

92.5 KB Created: 2021-12-04 10:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-04-21
MD5: 31bad204d253c200b2d7f783c3d188f1 SHA-1: b2e07c0c5007fb4c0c8f09fed330a0113ebc45db SHA-256: 487c98e255f92d7cac4c8cafcff2de74fe6edd2457780f2941747d7fa9a85c19
99 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0197

Heuristics 5

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.
  • 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=9780226066233&kwd=Holding%20On%20to%20Reality%20:%20The%20Nature%20of%20Information%20at%20the%20Turn%20of%20the%20Millennium PDF link annotation
    • https://files8.webydo.com/9588371/UploadedFiles/B0406356-9480-C53B-E96B-5B83DD33658D.pdfIn PDF document text
    • https://files8.webydo.com/9588392/UploadedFiles/4C34EDA7-6085-9AEF-37C7-0628D905199E.pdfIn PDF document text
    • https://s3.ap-northeast-1.amazonaws.com/uploads.strikinglycdn.com/files/ea73b61f-13b8-4787-95c8-1d6e9e811e91/language-teaching-awareness-a-guide-to-exploring-beliefs-and-practices-373.pdfIn PDF document text
    • https://s3.ap-northeast-1.amazonaws.com/uploads.strikinglycdn.com/files/ea73b61f-13b8-4787-95c8-1d6e9e811e91/language-teaching-In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off00011222.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_off00011222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11222 21896 bytes
SHA-256: 6e8ae243a73cf7992fd35848d455862097002585a38c809473becfa66546e73f
font_01_sfnt_off000144e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144E6 19572 bytes
SHA-256: 40d82354d3741b88080f98430a7ae99425f9dd06f75f98dfa6ce2bfd4f27e199

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