Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c02fd1ff7957d6…

MALICIOUS

PDF

38.7 KB Created: 2021-05-17 15:01:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9c8baf60dcf479dbf289d6e80890b353 SHA-1: 16785d59fd2b411e412e18291c483b518c3ba320 SHA-256: 17c02fd1ff7957d644263a91613e2c8ba92f79775ad6594c0ec9d353bc833528
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for linking to malicious redirector infrastructure, specifically a lure for a 'free generator / game hack'. The embedded URL, https://netcdn.xyz/app/431946152/roblox-avatar-free-game-hack, is identified as malicious. The document body also contains a clear call-to-action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/roblox-avatar-free-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003598.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3598 27848 bytes
SHA-256: 9c2c03ce96647c102d78c7c6cc5c25de87c4f3d643f2043ebc00925cd93fcc7d
font_01_sfnt_off000075d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D3 18396 bytes
SHA-256: fabbc4d33b4fd44a10480a095a1b5872a696080c7c42ded8a290903470f97fc4