Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c0b403e4cf212e…

MALICIOUS

PDF

31.7 KB Created: 2021-05-17 06:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 860ea8d56699bf90588b4fb87182bd4b SHA-1: 4ec87ddcb7a81825dae34dbc16f5ace00b245ac0 SHA-256: 92c0b403e4cf212ea42cfa2648d164e9d47b0682622d040fcc5b712bf36479cb
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains text and a prominent link explicitly advertising a 'how to hack to get robux' generator. This link, 'https://netcdn.xyz/app/431946152/how-to-hack-to-get-robux-game-hack', redirects to a malicious site, indicating a phishing or scam attempt. The PDF structure and content strongly suggest it was delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8565

Heuristics 3

  • 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.
  • 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/431946152/how-to-hack-to-get-robux-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000033a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33A8 28164 bytes
SHA-256: 835043b1eeba5ab23c5cae4b56df962f7cdd8c9544cae1659f977cf84848ec5d

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