PDF static analysis report

Static analysis result for SHA-256 28b1746c109b4227…

SUSPICIOUS

PDF

29.0 KB Created: 2021-07-05 06:12:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2d353725aefb97ae6a857b20a0c7166c SHA-1: 1ca1f89a1271d44a05a821b9bf400d0f294e44e7 SHA-256: 28b1746c109b4227a3ec0007a4dab32497ce5a0abd416104930ce739848a721b
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a "Coin Master generator hack" which redirects to the URL http://netcdn.tw/app/406889139/today-free-spin-coin-master-game-hack. This URL is flagged as suspicious and likely leads to a malicious site, possibly for credential harvesting or malware distribution. The presence of a "download button" lure further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0337

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/today-free-spin-coin-master-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
font_00_sfnt_off00001db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DB9 22396 bytes
SHA-256: ff2d2f4e154c9d02f70cebddf33e855f84a90bcbdc6aeb2353274b2dc8341511
font_01_sfnt_off00004f72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F72 18528 bytes
SHA-256: f8dd2954f0f3bcbf2df1f6258498c603c5a9fb04d130006050f95c06de5614fa

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