Malicious PDF — malware analysis report

Static analysis result for SHA-256 106c202533edef4b…

MALICIOUS

PDF

40.2 KB Created: 2021-05-21 16:09:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ea7ea4813fa6fa4279ca35d87f7844d0 SHA-1: 505392bc1924fd74d8c2bf4f38f85deac4b162ee SHA-256: 106c202533edef4b43f143ec30d1a38a5836ebfa11e01554018ba401bfc856fa
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for a "free generator / game hack" and presents a fake CAPTCHA to trick the user into clicking a malicious link. The document body explicitly mentions "CLICK HERE TO ACCESS ROBLOX GENERATOR", reinforcing the social engineering aspect. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-roblox-toy-codes-not-used-game-hack, which is likely used to deliver a secondary payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7829

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/free-roblox-toy-codes-not-used-game-hack PDF link annotation
    • http://www.les2alpes-location.com/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3614 25464 bytes
SHA-256: 84b0e1c99c64519de3392f5a4c618d9fa4f474107f1d9ef54896e5612a066a07
font_01_sfnt_off0000706a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706A 2984 bytes
SHA-256: 889cfc2fd0afa9ea114d6666204c6ce0548d0aae2cba345827d317498c4c06bc
font_02_sfnt_off00007a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A96 18592 bytes
SHA-256: 81fe2106c0d5db37bee378c9af18607d256debaa267bc9b857f52da7d8a402be

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