PDF static analysis report

Static analysis result for SHA-256 12a5582749c33924…

SUSPICIOUS

PDF

31.0 KB Created: 2021-07-18 23:02:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: cb6f8a5e82121da0e380f7bc621d055b SHA-1: 593f210b73c11f9f24ea3237dd2b980f3068e9a5 SHA-256: 12a5582749c33924d74f095f4d3bfa8f4cf735ffea153b4f9ab4f1d738ad78a6
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains text and a prominent link explicitly advertising a 'free Robux generator' and 'how to get free Robux'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this is a common lure. The embedded URL points to a site likely involved in distributing malware or conducting scams. No scripts were extracted, but the document's content and linked URL strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0564

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/431946152/how-to-get-free-robux-2021-easy-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_off000021e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21E7 22568 bytes
SHA-256: 376fec942d25b57bf8e9a725c2280a3a519a786cf25d30fab868cc5ca0f9023a
font_01_sfnt_off00005459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5459 19276 bytes
SHA-256: 7a8e0f0464ba8cbc7cdc9f98d62ba35f68a868c8d4001ab84d520415c4362a38

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