Malicious PDF — malware analysis report

Static analysis result for SHA-256 f51f9a3fcfa22b96…

MALICIOUS

PDF

34.0 KB Created: 2021-06-18 04:59:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e38da0a324415e97e577e562b083bf7a SHA-1: c8cd2e12461d57f764b68ef1d88a02d10c478fe0 SHA-256: f51f9a3fcfa22b96b8d0ec805545514111d900cb7faf718a656a01949644c8e6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for free game hacks, specifically mentioning Roblox and Coin Master, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the embedded URL is associated with a game hack redirector. No scripts were extracted, but the document's content and URL suggest a phishing or malware distribution attempt.

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/old-roblox-logo-t-shirt-free-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/wurst-112_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-roblox-and-put-on-your-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-online_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-robux-2021-no-download_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-wheel_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_off00002e59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E59 22164 bytes
SHA-256: ccb77be65d587f938d209855cf929fa3cca9d5cf1abb7e03a58cd5b0e1c89316
font_01_sfnt_off00005f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F38 19216 bytes
SHA-256: f218e314a64954b6b365bad1b3dedeb25f5f195a19c059c8d9a53ee4087a4bda

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