Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b20ea3636093d…

MALICIOUS

PDF

44.6 KB Created: 2021-05-13 01:30:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: c3f701291aea91ecbefdea292f08befa SHA-1: 22b49b9e989d4ba1a3982b4616a98d56ba612226 SHA-256: 793b20ea3636093d3466f64a2c4129f872aeb241ad4daf31c15ae93022fee033
130 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0145

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 https://netcdn.xyz/app/431946152/get-free-robux-com-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000337c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x337C 27084 bytes
SHA-256: 204969b4e85f0a0527aa32305e72b61451667528d2cddb94082d46676a675269
font_01_sfnt_off000071e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E4 8132 bytes
SHA-256: e6d68e720ea5acf9dccbf7ffde18db6f65c62a99ab7725aa43e30329033a7787
font_02_sfnt_off00008cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD1 18376 bytes
SHA-256: 2d8882c6a342abc4889e46f94bfee9f8cbf5538b2f5dc41d172000db9622f481

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