Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a51749c34360911…

MALICIOUS

PDF

35.7 KB Created: 2021-06-29 16:31:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 71c7a9fc7111301c9f39ade4253cf28c SHA-1: 8cfd73c6e19c801ac371967aefb84e64477c481e SHA-256: 3a51749c34360911643d256342dc55561a00f463dbd4d9dadb3f5f1c28cdb2d6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one at http://netcdn.co/app/431946152/roblox-btools-hack-2021-download-game-hack, that promise game hacks and cheats. This indicates a social engineering lure to trick users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

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.co/app/431946152/roblox-btools-hack-2021-download-game-hack PDF link annotation
    • https://creationegyptco.com/userfiles/files/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/dll-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-no-scam-or-password_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/sex-cheat-codes-roblox-sound-id_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-hack-tower-of-hell-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/ninja-legends-hack-mobile-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/tiktok-free-view-30_GM835599320.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-cheat-andget-things-that-cost-robux-without-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-unlimited-robux-indigojoe_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-coins-coin-master-ios_GM406889139.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_off000031bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BB 22704 bytes
SHA-256: df1ac4bcf351a39f83cbd14b9fc5422692ae6769fae58e7346e80102cc6a475e
font_01_sfnt_off00006441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6441 19668 bytes
SHA-256: b3fb894e98e17ba52d0f39da9f2f3ed9ad9d1c25555bfda274e22671ccc29cc4

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