Malicious PDF — malware analysis report

Static analysis result for SHA-256 65bb984adcf21cc7…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 20:35:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 925d4179889bc56bfffb36b5ea55c6b1 SHA-1: 73e68c7cb458426de4216f8cb9d08189e3306598 SHA-256: 65bb984adcf21cc7d0977453dad3d7dec95a2a7dac19aaebea19c437e154b7b4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that mimics a guide for hacking games, likely as a lure. The presence of a download button lure and instructions for handling password-protected archives suggests the document is designed to trick users into downloading and potentially executing a malicious payload. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/best-tools-to-hack-roblox-on-android-game-hack
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins-whatsapp-link_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/100-free-spins-on-coin-master_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/como-hackear-juego-coin-master_GM406889139.pdf
    • http://library.stieyapan.ac.id/repository/how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/how-to-get-free-roebucks_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/coin-master-hack-for-ios_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/boku-no-roblox-hack_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/roblox-free-obc-accounts-2021_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/hack-coin-master-without-root_GM406889139.pdf
    • http://library.stieyapan.ac.id//repository/minecraft-iphone-free_GM479516143.pdf
    • http://library.stieyapan.ac.id/repository/how-do-you-get-free-roebucks_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/get-free-robux-now_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdf
    • http://library.stieyapan.ac.id//repository/minecraft-114-download_GM479516143.pdf
    • http://library.stieyapan.ac.id/repository/roblox-rc7-apocalypse-rising-hack-scripts_GM431946152.pdf
    • http://library.stieyapan.ac.id/repository/minecraft-hacked-client-download_GM479516143.pdf
    • http://library.stieyapan.ac.id//repository/robux-sites_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f64.bin
95e46c7fb39f14859417efa8bcb44d046da25345e610d6006c00c4799e9608d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F64 21668 bytes
font_01_sfnt_off00005f07.bin
7abc3dbd44392debb4ec71f5041c0b786603f7e9be0d001f587a2830257768b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F07 18868 bytes

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