Malicious PDF — malware analysis report

Static analysis result for SHA-256 be58b36f354df1a7…

MALICIOUS

PDF

33.6 KB Created: 2021-07-08 21:58:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b4e91e52a3bd45683ca2256bc37af741 SHA-1: 8bc636c3dc703220195808434d8fd3295927f4c0 SHA-256: be58b36f354df1a79a9d7b88017bab59bd894ac93e95c7c1fc2a5726c9acedbf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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/431946152/roebucks-on-roblox-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/tiktok-for-free-install_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/running-cheat-engine-with-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/stream-snipe-hack-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-good-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-shirt-assets_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/is-tiktok-free-to-install_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-nike-shirt-free-shipping_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-points_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-admin-panel_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-coin-master-no-verification_GM406889139.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_off00002f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4C 21644 bytes
SHA-256: ebb39d5c3c7d08d1be21363b5be3604b368699cd26824573ca2c8aa98b62dc37
font_01_sfnt_off00005ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE7 18796 bytes
SHA-256: 58d0b4866d64dafe4f5ce9b57e76ffce2d11e44b7407c5bc7b475816988fb519

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