Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d0411bb92e4a696…

MALICIOUS

PDF

38.2 KB Created: 2021-05-24 15:32:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd246b715a8d1059ba8f98093047ff3a SHA-1: cf6f2d0a3bfd96934b198d80b7199516893c053d SHA-256: 1d0411bb92e4a6969fa8a313207d5eda7bb9fc4a9e2408fa5eed66a0975b0b38
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Robux Free Online Game Hack" and includes a critical heuristic firing for a malicious redirector link. The embedded URL, https://netcdn.xyz/app/431946152/robux-free-online-game-hack, is known to be associated with malicious activity. 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 0.0784

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/robux-free-online-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
font_00_sfnt_off00002fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCF 30876 bytes
SHA-256: b0b1d1d2b8f3acd75ec4786e874ae9c871573e3a73ea22137c28db33cfe8fe37
font_01_sfnt_off00007508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7508 18208 bytes
SHA-256: 9c6e6aa5efa9903ee4d2fc70532f13b8880c04837d913a4df075592e4b137fb6