Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a87fa5cbe89ada…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 05:59:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e629698ba677129cff011d3c539657d3 SHA-1: ca41c70671a5ce39dc741eb5653602875a2986e2 SHA-256: b0a87fa5cbe89ada3ce1a7d0263e0c023fad527bdec7eb342b213b90d8715f41
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a common lure of 'free game hacks' to entice users. The document body and extracted URLs point to websites offering generators for game currency or cheats, such as 'free Builders Club on Roblox'. The primary heuristic indicates a malicious PDF linking to a game hack redirector, strongly suggesting a phishing or scam attempt designed to lead users to potentially harmful sites.

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/how-to-get-free-builders-club-on-roblox-on-phone-game-hack PDF link annotation
    • http://www.access-coiffure-tours.fr/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/infinite-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/guest-roblox-face-hack_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-free-robux-in-roblox-on-the-pc_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/www-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/cheat-mod-roblox_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-spin-and-coin_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_off00002f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F56 21984 bytes
SHA-256: 0bdd6a16f4460bcf92af2118c0ff59d321c06d5a21019771d997081eb597e6ae
font_01_sfnt_off00005fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCD 19672 bytes
SHA-256: 76964d9d35005d614f160d66e1b13424aff56b244b5bc0c76b472a7da915fde0

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