Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b26d301898fd2e…

MALICIOUS

PDF

36.9 KB Created: 2021-05-23 11:54:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e3c7bc0e0611cac17a0e38e68233e2e4 SHA-1: 0bfe0fae856e750601885fbcbe585aeeab79792f SHA-256: 65b26d301898fd2e6aa9a1ea6cf0bd9a517e49a984d2578bc2ceb53d5384e869
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent call-to-action disguised as a download button, all related to 'Roblox Hack Tool' lures. The document body explicitly mentions 'Roblox Hack Tool' and directs users to click a link for a generator. The primary URL, https://netcdn.xyz/app/431946152/roblox-hack-tool-game-hack, is associated with this lure, suggesting the PDF is part of a phishing or scam campaign. No scripts were extracted, but the embedded URLs are the main indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/431946152/roblox-hack-tool-game-hack PDF link annotation
    • http://rainbowbuddha.academy/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://rainbowbuddha.academy/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000324c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324C 26340 bytes
SHA-256: 273c97d27884c734b0b86752a788d69971ff2d7faf4ac45e2a512983e030be5a
font_01_sfnt_off00006f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4C 18184 bytes
SHA-256: 31a2c7908075477008558d8ad35fc874cd0c1469ac409190117581929eec3da7

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