Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b9ec9e213c59ab…

MALICIOUS

PDF

90.2 KB Created: 2021-12-08 04:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-04-02
MD5: 852848e59510a08b614c10cf4f257ff3 SHA-1: 0add2dd8318c7d71716bff57613f317144b42074 SHA-256: 88b9ec9e213c59ab604fc8bc58e55a822a7cd73e06d5cdd7e93d16f85cbc76fb
99 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

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=9781648520020&kwd=Slug%20Life%20Sketchbook PDF link annotation
    • https://static.s123-cdn-static-b.com/uploads/4661207/normal_61afb5eaabfa2.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off00010940.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10940 21616 bytes
SHA-256: 21df11d4783773885ee3765194aed116bdcfcf1bcf831b81d9f4b6db319e552b
font_01_sfnt_off00013b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B1F 19792 bytes
SHA-256: 9252575bd3211f4509fca0c095412a8ab49e9f9b62a39be1ad7f3c15997d7456