Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7ec97e8aa310c9b…

MALICIOUS

PDF

36.7 KB Created: 2021-05-13 19:38:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f60a4765362d2516c16226a1292e6e1 SHA-1: 55d4a8def2a3cb6c41d55baa2891eb6787bbded4 SHA-256: f7ec97e8aa310c9bc2f9262edefecd34acdf07e4a5abd6c350a77d73b6e5f0ed
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux' and 'game hacks', directing users to a suspicious URL. This URL is flagged as a malicious redirector, indicating a phishing or scam attempt. The document's structure and embedded content suggest it's designed to trick users into visiting the malicious link, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0292

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/how-to-get-free-robux-on-phone-2021-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_off0000312c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x312C 25692 bytes
SHA-256: 6da07bfba73c2b93cc3c0a1e52d12d44451bc6b431893dd39a85ab7f0820db61
font_01_sfnt_off00006c07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C07 19004 bytes
SHA-256: 9143e9c063c8a9c8d6296be3e5503e9365326e279c6efd0fa2ab6b1a3dcd35cd

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