Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d62f55910124f90…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 11:08:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0dedf512b9cee07aac16a32d24973964 SHA-1: e1098fe0a9e1cb33529b6d42ac6e3d67ae1fb905 SHA-256: 3d62f55910124f9012aae39b59d1a31826aff7b10d6c7086c241e1a1c88189ff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and document body text that lure the user into downloading a game hack, likely to deliver a malicious payload. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests a download attempt. The document also contains instructions for handling password-protected archives, a common tactic to evade security scanning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/431946152/www-roblox-robux-game-hack
    • http://e-library.akbid-purworejo.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/free-spins-coin-master-app_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/free-robux-android_GM431946152.pdf
    • http://e-library.akbid-purworejo.ac.id//repository/free-robux-codes-not-used_GM431946152.pdf
    • http://e-library.akbid-purworejo.ac.id//repository/gamesofficenet-hack-coin-master_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/minecraft-apk-android-free_GM479516143.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-2021-free-spins_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-unlimited-spins-hack_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/where-tiktok-free-download_GM835599320.pdf
    • http://e-library.akbid-purworejo.ac.id//repository/get-free-robux-info_GM431946152.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/free-spins-coin-master-legit_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/free-multiplayer-minecraft-server_GM479516143.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/free-roebucks_GM431946152.pdf
    • http://e-library.akbid-purworejo.ac.id//repository/mcpe-hack-client_GM479516143.pdf
    • http://e-library.akbid-purworejo.ac.id//repository/hack-coin-master-apk-33_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdf
    • http://e-library.akbid-purworejo.ac.id/repository/robux-cheat_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005267.bin
a3a020f23fe3131c7175fd812af2351bbc22520711f7eb234d44b52fcfa3ee81		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5267 25292 bytes
font_01_sfnt_off00008cd7.bin
6c344bff8cb11efcfa323542d02369dac514041cc19c9a49b1052cb126dcbdcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD7 2852 bytes
font_02_sfnt_off00009699.bin
78b116fa1ee868f0b0d7434088deeaef50c2dd7920df139fcc6e1eb836a1517c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9699 18284 bytes

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