Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07282eb01a9c129…

MALICIOUS

PDF

84.4 KB Created: 2021-12-09 15:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-04-07
MD5: 236b75c1bfc51b646c312a135021545d SHA-1: cfa38dee3d506599b49adbd494c9443c6fd369dd SHA-256: d07282eb01a9c1297c6b811c3c480b564159d66d119f9a95e0388a919d5356ed
67 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0009

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=9780367384401&kwd=Theory%20and%20Applications%20of%20Higher-Dimensional%20Hadamard%20Matrices,%20Second%20Edition PDF link annotation
    • https://files8.webydo.com/9589195/UploadedFiles/28DA76D6-2B57-3A03-63A0-BE25D10C23EB.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_006_off0000f1a8.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000f1a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xF1A8 22320 bytes
SHA-256: fc9ff996e0aba69b8cb17881c15b3a111968bf60493165ba9612abab8e1a1c91
font_01_sfnt_off000125f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125F4 19392 bytes
SHA-256: 862148fcb2dcbc393b5e090328d4e2a3ddad434ea96ffcf1b742882f22984529