Malicious PDF — malware analysis report

Static analysis result for SHA-256 a34842e05107b0a4…

MALICIOUS

PDF

33.9 KB Created: 2021-06-18 09:23:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8b6b4000d34002c6674731eb80be6669 SHA-1: df6d7fd28d9ca5c53dde1aa02c24d0fc39d21834 SHA-256: a34842e05107b0a4f36632efb368c8142a07acd23ae4eda4797bbc4ac8adcf7d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment

This PDF document exhibits malicious behavior by attempting to lure the user into downloading a file via a fake download button and instructing them to paste content into a command-line interface, likely to execute a malicious payload. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple external URLs further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/roblox-mods-hack-game-hack
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-sign-in-free_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-premium-roblox_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/robuxy-com-free-robux_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-spins-fb_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-rewards-coin-master_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/what-day-does-john-doe-hack-roblox_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-hack-tools-download-2021_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/hack-free-spin-coin-master_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-ids-for-free-spins_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-hack-ios-10_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-hack-apk-free-download_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-pet-treats-coin-master_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/pubg-uc-with-jazz-cash_GM1330123889.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/robux-hack-me_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/get-free-robux-generator_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/minecraft-free-online-games_GM479516143.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/80-free-spins-coin-master_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/getrobux-come_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f1c.bin
ca22a7a444fe0203a4dfa0771a92250120d17256bfabd4f4779a5f508daec581		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F1C 21892 bytes
font_01_sfnt_off00005f64.bin
300b8df6e9b8a3fa3311365c4fec836688b7625994623dbaf79d5874c9e2c4ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F64 19028 bytes

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