Malicious PDF — malware analysis report

Static analysis result for SHA-256 4052a79c523c210c…

MALICIOUS

PDF

35.9 KB Created: 2021-05-24 04:38:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 06640d7d77b2282483f55e4ed680bb0d SHA-1: 78e0ba89615663acb4a3f1b64b987176faf384d9 SHA-256: 4052a79c523c210cb9b3a40269dbb1a05287341d41c7b881d094a5b0ff818c39
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text lures related to game hacks, specifically for Coin Master and Roblox. The primary URL, https://netcdn.xyz/app/406889139/coin-master-hack-without-verification-2021-game-hack, is flagged as a high-risk redirector for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-hack-without-verification-2021-game-hack PDF link annotation
    • http://www.habitas.it/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://www.habitas.it/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • 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
stream_002_off000031b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31B6 24728 bytes
SHA-256: f28f8049533cbc900219327277663190b60049d6f6e2c2950fb2dc3b3306c7ea
font_01_sfnt_off00006955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6955 18756 bytes
SHA-256: 1f8069b8e373c1677ee696ae61803aee5e0941708a1ef93a03d88c08535d6ef3

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