PDF static analysis report

Static analysis result for SHA-256 c0fc5ffc975fec2e…

SUSPICIOUS

PDF

28.1 KB Created: 2021-07-05 02:43:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 786cf86440de6302b195c2f71e6cb3ef SHA-1: 4f64fe192f78db96129c3f87d680b6c7417f0344 SHA-256: c0fc5ffc975fec2e37b1b32337ca1dfade2d3c2df89960853615a1299f126a95
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a 'game hack redirect lure' pointing to a suspicious URL. The document body also repeats this URL and includes a call-to-action phrase, reinforcing the lure. While no scripts were extracted, the presence of a malicious-looking URL and the lure suggest an attempt to redirect the user to a potentially harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0330

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 http://netcdn.tw/app/406889139/hack-to-send-gold-cards-on-coin-master-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00001b82.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B82 22240 bytes
SHA-256: eb1bbceca712baad5aae31496ab0b49afedd76f9e037c6e59920b08b5458316c
font_01_sfnt_off00004cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB8 18252 bytes
SHA-256: 2404e29e1a45577db7d9d1851bba941e7ce9a3146c2b043007f3b8db4c3efe9a

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