Malicious PDF — malware analysis report

Static analysis result for SHA-256 425dfe095f6d0658…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 04:28:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7a0bc81093dea1f9cbc4a1d7672e7615 SHA-1: fa5d99179cb0fa6063a3070a9b6df606dfbd2cf8 SHA-256: 425dfe095f6d06582e4705c93c640545627a8cb47ea18d879d8e47dcc873e662
82 Risk Score

Malware Insights

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

The document employs a browser installation lure, directing users to click links that promise free Robux or game hacks. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs likely lead to malware downloads or phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.co/app/431946152/does-roblox-ever-give-free-robux-game-hack
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-free-robux-hack-on-mobile_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-generator-2021_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-without-downloading-apps_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-cheat-codes-sift_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/free-face-roblox_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/oprewards-robux_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/ways-to-get-robux_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-admin-hack-android_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/minecraft-apk-android-free_GM479516143.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-free-spins-and-cards_GM406889139.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/games-in-roblox-that-give-you-robux_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/robux-robux_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-free-robux-without-bc-2021_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/big-brother-roblox-exploits-free-download_GM431946152.pdf
    • http://www.pspmrsmkklawang.com/opac/repository/minecraft-creative-mode-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000349e.bin
bf207e72228d028e9517c6f6c32e4703ec1f804b06a94907ed1c13869e391c91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x349E 21592 bytes
font_01_sfnt_off00006397.bin
5e2c0481015cbdb547b7479ebd0c142c247efb0afcdb88a101baf6d3fc385aaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6397 19192 bytes

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