Malicious PDF — malware analysis report

Static analysis result for SHA-256 10766385bb75cf31…

MALICIOUS

PDF

48.4 KB Created: 2021-06-02 16:00:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 01e27b98e6fa0c768b79e9e20f7dc904 SHA-1: d8b83c87ebea98b80c63f3c8cfecc5e747893d03 SHA-256: 10766385bb75cf314fdaa5dc2ad09f27c010a131783e446897661911753be8df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and websites offering game hacks or free currency, indicating a social engineering lure. The ML classifier also flagged this PDF as malicious. The embedded URLs are designed to lead users to potentially harmful content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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-mad-city-free-car-game-hack In PDF document text
    • http://dismarinamt.com.br/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://dismarinamt.com.br/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://dismarinamt.com.br/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://dismarinamt.com.br/images/pubg-uc-xda_GM1330123889.pdfIn PDF document text
    • http://dismarinamt.com.br/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://dismarinamt.com.br/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://dismarinamt.com.br/images/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://dismarinamt.com.br/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dismarinamt.com.br/images/robux-claimer_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dismarinamt.com.br/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://dismarinamt.com.br/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51EA 26740 bytes
SHA-256: 1af269ea0e9d7506ec7253bb3448b3e49e5d3d3d23d9c8eeaecdcae1519941a5
font_01_sfnt_off00008ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC8 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9879 18948 bytes
SHA-256: bb4eb0079a5bdba5a5bc3144345888b622dd2a7281a740f8171533b33c24dcb8

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