Malicious PDF — malware analysis report

Static analysis result for SHA-256 f92296b2edd8ce75…

MALICIOUS

PDF

34.9 KB Created: 2021-05-10 09:14:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d82e661dd9aa6a9baa27219711a27127 SHA-1: d50a74685b7a546e93ebfeb2c17a52cb25ba6412 SHA-256: f92296b2edd8ce753b12fdf249c5ddd529482fd60d23573ee259f88d22db5f40
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing indicating it links to a malicious redirector disguised as a game hack generator. The embedded URL, 'https://netcdn.xyz/app/406889139/coin-master-free-spin-and-coin-game-hack', is flagged as malicious. The document body also contains text related to game hacks and a call-to-action phrase, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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/406889139/coin-master-free-spin-and-coin-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_off000031e2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31E2 24532 bytes
SHA-256: 711307fd81cfa5b99e32a518f2f225ce0e499a789bb7c7017ac443148d669609
font_01_sfnt_off000068e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E9 17644 bytes
SHA-256: 3feeae90230326d51a7ae7433d75f4f13ad2e042533121f9451cae16e8760612