Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db7fd71116a13fd…

MALICIOUS

PDF

36.2 KB Created: 2021-05-18 05:35:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d4a46dc2ec51be5a2e8c99ba14ff9296 SHA-1: a3af12d5e63d2c7dacb83514b1c3fd3ab006b9f0 SHA-256: 2db7fd71116a13fd898a00afc7f4d8b4f825a36e124bb889d277b76a1f0dab4a
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a malicious URL. The document body and metadata also reference 'free Robux' and 'game hack', reinforcing the social engineering pretext. The embedded URL is the primary indicator of a potential second-stage download or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0302

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-me-free-robux-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_off00003369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3369 24992 bytes
SHA-256: 36a50d09d2654d5e8ad9a330e6ecff4605a7883a2a1d6daf111afc94e8bc9974
font_01_sfnt_off00006bdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDD 18312 bytes
SHA-256: e3f176f8735a7a9c211288ec5f3dfc0a25536bb398bd4870e4b297ba4f960079

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