PDF static analysis report

Static analysis result for SHA-256 4c171b7a5d69f363…

SUSPICIOUS

PDF

36.6 KB Created: 2021-05-11 05:01:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f8c6dc608244645e6d654d79163f82b2 SHA-1: 1823b3fae5e4f3e0d44a2c149a3bd256f9233a3e SHA-256: 4c171b7a5d69f36326c9340fe226d906998104fd717f6e6c7a5394493bb20474
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a game hack generator, which is a common lure for phishing or malware. The document body explicitly mentions 'Coin Master Free Link 2021' and 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the deceptive nature of the content. While no scripts were extracted, the PDF structure and embedded URI heuristics indicate a malicious intent to redirect users to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier clean score 0.0292

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-link-2021-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003302.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3302 25268 bytes
SHA-256: 46a902718aacea37e744437204c691a9dd30cdd06011f11e94265c6227231fa0
font_01_sfnt_off00006d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9B 18284 bytes
SHA-256: be459003f2db1a934c49859962f2962ce704e042ee0985c73311b64c11e09449