Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a5a9f9de24e6c93…

MALICIOUS

PDF

30.0 KB Created: 2021-07-29 13:13:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 277c9c3f05ba860fc0d9bb71a7be933c SHA-1: e39c3b8e9478257fcb3b2c6c6b3e0e9473ca6608 SHA-256: 9a5a9f9de24e6c93cc61a9c7f6abedb6672c5353ab751d947dc85b957e424497
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lure users with the promise of game hacks and generators, specifically mentioning Minecraft. These links redirect to external URLs, such as http://netcdn.tw/app/479516143/minecraft-pe-hacks-game-hack, which likely host malicious content or further redirects. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for user deception and potential payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/479516143/minecraft-pe-hacks-game-hack PDF link annotation
    • https://senvoigiatot.com/public/upload/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://senvoigiatot.com/public/upload/files/how-to-make-a-minecraft-server-for-free_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
font_00_sfnt_off0000257c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x257C 21644 bytes
SHA-256: f0efbd78f4a0161400437355fcb60b1ae5c4d3b9e24c0d98516e48d40d6dd70b
font_01_sfnt_off0000549c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x549C 17892 bytes
SHA-256: fda2b16deba9a1c4b3626a8ad3479d009d1f56903d8778c05817a0c1608b8b5f

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