Malicious PDF — malware analysis report

Static analysis result for SHA-256 7324838f8773e6ce…

MALICIOUS

PDF

29.6 KB Created: 2021-07-19 11:43:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e6550f6c2eafde6413bb611ebd25269d SHA-1: b6d6e2f684b6a9f4e310e2ce0625c749812392e3 SHA-256: 7324838f8773e6ce122fd701e071d2d1bf746efb2f248d97a4d69617f8a3830d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for free Robux and game hacks, directing users to a malicious URL. This is a common social engineering tactic to trick users into visiting potentially harmful sites. The embedded URL is a known malicious redirector, increasing the confidence in the malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0573

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 http://netcdn.tw/app/431946152/get-free-robux-no-human-verification-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_off00001d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D38 22704 bytes
SHA-256: d2ace01685485b7884cb9997a08e6cbe72aff86c07210ff4fcdabfa8a6e69da1
font_01_sfnt_off00005010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5010 19044 bytes
SHA-256: 38fd224e0d48f9f4e428ac61794e14445b5b8d4d7f08215596fa31319312d533

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