Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5e267363be93ec0…

MALICIOUS

PDF

41.3 KB Created: 2021-05-13 14:39:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7bcbe0c5de8a00742a92ce8f76187fd5 SHA-1: e71e6fb6a890a3005b519d3826693f493f3aeb25 SHA-256: b5e267363be93ec0a44ebccce7ee8eaa4fbdcde9690bf7da0cb8e0bdeeec50cf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The primary lure identified is 'Roblox Trolling', directing users to 'https://netcdn.xyz/app/431946152/roblox-trolling-game-hack'. This indicates a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded links and the ML classifier strongly suggest malicious intent.

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-trolling-game-hack In PDF document text
    • http://shiny-nn.ru/images/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-spin-and-trading-group_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_off0000490a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x490A 24044 bytes
SHA-256: 725ff2aff5ffcb2246a6c52f168b0084840884e372d242a2bc692ed0d5a7bcca
font_01_sfnt_off00007f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F50 18192 bytes
SHA-256: 71604384ebc4a394942ac25074e396c0ebb11f2a88b51d5532127cac238e2fd8

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