Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0fce7b05c19727…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 15:33:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 70c290a97735d5f03f049cfda9ad541c SHA-1: 7b48c43bfb4739bf594a6145b558a8f45b66dafe SHA-256: fd0fce7b05c19727e090244a3278ef1a68d837d1a92420f90064c1bfef1b4d7d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites, many of which are related to game hacks and free currency generators for popular games like Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this is a lure to redirect users to potentially malicious sites. While no scripts were explicitly extracted, the nature of the links and the ML classification suggest the PDF is designed to exploit user interest in free in-game items to lead them to a malicious download or phishing page.

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-gear-in-roblox-free-admin-game-hack PDF link annotation
    • http://mycookingpot.com/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/roblox-free-draw-2-how-to-get-good-drawings_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/gift-card-roblox-free_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/wurst-commands_GM479516143.pdfIn PDF document text
    • http://mycookingpot.com/images/free-tonk-roblox_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://mycookingpot.com/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://mycookingpot.com/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://mycookingpot.com/images/funny-hack-scripts-roblox-pastebin_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_off00002f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F63 22012 bytes
SHA-256: 24f87dd4142a5e6908413c63f31bc6dd5094a40d0814d4140e407121795dabb1
font_01_sfnt_off00006010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6010 19472 bytes
SHA-256: 15868800d8c4777d4cdb3ad0a89a9621bd5d59a0c9fab9517f3dabb0abc83c97

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