PDF static analysis report

Static analysis result for SHA-256 9f7ea2f2257fa9cb…

SUSPICIOUS

PDF

41.5 KB Created: 2021-04-28 05:08:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f6001d749d304e647d4f22e172ac1cc4 SHA-1: dbde978f2665deb81a115d84bcd971d37ca67a33 SHA-256: 9f7ea2f2257fa9cb167dbd0ad646fb582298f59f6f0dade8dbc496b8b590aa24
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a heuristic firing for PDF_URI, indicating an attempt to redirect the user to malicious content. The document body and extracted URLs suggest a lure related to "Roblox Hacks" and "Free Robux", aiming to trick users into downloading a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 3

  • 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.xyz/app/431946152/noot-noot-roblox-hack-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/free-robux-with-tampermonkey.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/como-hackear-juegos-de-roblox-2021-sin-descargar.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-scamgames-2021.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/creepy-roblox-hacker.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-roblox-shirts-to-upload.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-free-roblox-money.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/john-roblox-free-robux.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/download-games-for-free-robux.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-hack-download-code-unlimited-robux.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-hack-free-robux-no-downloading-2021.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004300.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4300 26848 bytes
SHA-256: b7a688b6437e80cf9aedfa907db07b7c5c73771fa40367f585f0cdfe0bc93a04
font_01_sfnt_off0000806d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806D 18284 bytes
SHA-256: 990c48532f085744e515198b035f7839c849bbc36d252e52a8049e0a43d202ea

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