Malicious PDF — malware analysis report

Static analysis result for SHA-256 43108227ed51afee…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 16:15:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: dbfad82edd481f140cfa77a1b118e0e9 SHA-1: ab726735f477dc3976bcb2c492bd609f6458c8f1 SHA-256: 43108227ed51afee59300c97be45d7d01018a6a51f52d71cbb59edbb10aa3e01
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on links related to game hacks and free in-game currency. The primary URL, https://netcdn.xyz/app/431946152/games-that-give-free-robux-game-hack, is flagged as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a phishing or scam attempt, likely intended to lead users to a malicious website or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/games-that-give-free-robux-game-hack PDF link annotation
    • https://wandersuechtig.de/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://wandersuechtig.de/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://wandersuechtig.de/images/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/roblox-robux_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • https://wandersuechtig.de/images/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://wandersuechtig.de/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://wandersuechtig.de/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://wandersuechtig.de/images/coin-master-hack-version_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_off000048dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DD 24732 bytes
SHA-256: dabfd5373a169c626c465c40daa7db6a2a9dc42e68bffc1ce50d8e4fba431a2d
font_01_sfnt_off000081e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E1 19004 bytes
SHA-256: 2c8b49b77d2c215152c292f7884bc67c80baba545cc8313e1cf14c5f8a523509

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