PDF static analysis report

Static analysis result for SHA-256 7c824fef8e1251df…

SUSPICIOUS

PDF

46.1 KB Created: 2021-05-13 17:43:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9fb327ddd3720fdf6eebd085d7cbf73a SHA-1: ca887afe4cd19fcd13e99fd1dcadbe8dc63ba3dd SHA-256: 7c824fef8e1251dfb2042b369cdce28b109ec2b10ab36f57175590fbfc3cd63f
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Robux' and includes a prominent external URI pointing to a download link. The ML classifier also flagged the PDF as malicious. While no scripts were directly extracted, the presence of external URIs and the nature of the lure suggest an attempt to trick the user into downloading a second-stage payload, likely disguised as a game hack or cheat.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/download-apps-for-robux-game-hack PDF link annotation
    • http://schmittmusic.de/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://schmittmusic.de/images/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://schmittmusic.de/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://schmittmusic.de/images/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4947 25160 bytes
SHA-256: 59dfaea52a8bc4ff2899d39132484806af707d8ffa008f2aef268e081e146e0d
font_01_sfnt_off00008268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8268 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00008f79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F79 18996 bytes
SHA-256: ea235c61f7ee6ff97cb8e2e4b8381115f9ce59fc272e8f2939e83a9622de1179