Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63dc5ba05b13cad…

MALICIOUS

PDF

41.9 KB Created: 2021-05-17 19:09:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f3d99485799f0a0be94a3386b3e92f9 SHA-1: 29712612b159524912f9723b3be3f8306a8740ab SHA-256: e63dc5ba05b13cade5d82db9d0cf3a8bd5991e0f85a3e6cd706e5eecba1160a2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically targeting users with lures for game hacks and free in-game currency. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-com-hack-game-hack. The presence of these links and the ML classifier's high confidence score indicate a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-com-hack-game-hack In PDF document text
    • https://www.elevage-chiot.fr/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/optifine-mcpe_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/hack-coin-master-android_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
stream_003_off00004799.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4799 24976 bytes
SHA-256: 2f516454cd6a22813ca57ca0045fc7048c5c84dab00697bbbcaf634a0fe412e9
font_01_sfnt_off000080b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B2 18440 bytes
SHA-256: 998502f3d31251ba6a8b9f896cebf55eeafd88011b242c250778658ce2e0bbe6

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