Malicious PDF — malware analysis report

Static analysis result for SHA-256 e268e224e36c1edf…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 05:34:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 75213ff7684c125a16e5e6fe2ae6561f SHA-1: cb6959e3b58cf003acfc50d24e3c12365040fcc2 SHA-256: e268e224e36c1edfc0d09b054061758965f87774efe28096c6ae4197dc83975e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'Free Prizes Roblox 2021 November' and game hacks to entice users. It contains multiple embedded URLs, with the primary one being http://netcdn.tw/app/431946152/free-prizes-roblox-2021-november-game-hack, which likely leads to a malicious payload or phishing site. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and URL patterns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/431946152/free-prizes-roblox-2021-november-game-hack PDF link annotation
    • http://library.stieyapan.ac.id/repository/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-ban-people-from-servers-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-galaxy-arcade-resourcen-cheats_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAE 22108 bytes
SHA-256: 356f5b2fae1a26c4145f1334b00f86193baf23b84e19c4417b3f5ab2c2d72fbe
font_01_sfnt_off00005da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA0 19596 bytes
SHA-256: adf18877f3086cde487f9192c1e306bdaffbe18004a55c396128ae83b297d891

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