Malicious PDF — malware analysis report

Static analysis result for SHA-256 e272c6f6b5e1e287…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 23:22:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3af7f09c7b189957654711e4daae8fd3 SHA-1: e056604ee2e4051daa9a2ae093ec8a3e982ffc6e SHA-256: e272c6f6b5e1e2870f5b84173598ddbceae0c215bea1b9074e216f8bab778ff3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains embedded URLs and heuristics indicating a social-engineering lure to install a browser extension or update. The document body, though heavily corrupted, contains text related to 'free followers' and 'game hack', aligning with the browser installation lure. The presence of multiple external URLs suggests an attempt to redirect the user to malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/835599320/free-tiktok-followers-without-verification-game-hack
    • http://digilib-ppsunisma.ac.id/repository/free-roblox-accounts-2021_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spin-link-app_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/free-robux-net_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-daily-spins-link_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/pubg-uc-zing_GM1330123889.pdf
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/minecraft-java-edition-free-download_GM479516143.pdf
    • http://digilib-ppsunisma.ac.id/repository/roblox-report-hacker_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spin-link-twitter_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/roblox-generator-no-human-verification_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/free-spins-for-coin-master-ios_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/free-2021-robux_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spin-generator-without-human-verification_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/appsmob-coin-master-hack_GM406889139.pdf
    • http://digilib-ppsunisma.ac.id/repository/pubg-uc-770_GM1330123889.pdf
    • http://digilib-ppsunisma.ac.id/repository/roblox-hack-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f5d.bin
ae1ea1774760e177d26ed275c9ca278446b108565fd0c6c88fb0a70b454d7310		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F5D 26576 bytes
font_01_sfnt_off00008bfe.bin
4328f2d9021fda272d6942102c30ad90396447c40598e55ae21b07e1aa723a10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFE 18560 bytes

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