Malicious PDF — malware analysis report

Static analysis result for SHA-256 38b7964d04076b74…

MALICIOUS

PDF

34.4 KB Created: 2021-06-17 19:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6cb0ed16b9f03e61fbfd6848e9b3af1b SHA-1: 88e709f1b82d873f80dedd08a088a29ef3ca1ca6 SHA-256: 38b7964d04076b749ed242fd45daf2dde299ab697b0e5f242164b9feda863de2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to websites offering game hacks and free items for popular games like Roblox and Minecraft. The primary URL, http://netcdn.co/app/431946152/roblox-how-to-buy-items-for-free-game-hack, is flagged as a redirector for game hacks. This suggests the document is a lure to drive users to potentially malicious sites that may host malware or phishing content. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a social engineering attack.

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-how-to-buy-items-for-free-game-hack PDF link annotation
    • http://parsbaft.com/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/project-lazarus-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-hack-unlimited-robux-apk-download_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-fly-hack_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_off00002f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F26 22356 bytes
SHA-256: 1926692e04cfb658451dad8dc73983451c7d89534284b70ddc630561078d6158
font_01_sfnt_off000060b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 19312 bytes
SHA-256: efb7a37a9bc0e92ea0f834521cd922220cd68e6915854bc224c1a26d91ad6d9b

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