Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dccbca93dac9868…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 20:00:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5790b84a59cd94b912dd09ab1744aeec SHA-1: 6a7db7e51ff2e4033394fca243fd4873da250f1b SHA-256: 9dccbca93dac98687fe12b3211e79dd40afc3676c44d0eee14bfc1f984f08fe9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to malicious redirectors and further malicious PDFs, masquerading as game hacks and cheats. The primary lure is 'toolbox-for-minecraft-windows-10-game-hack'. The ML classifier strongly indicates maliciousness, and the PDF structure is designed to exploit user interest in free game-related content, leading them to potentially harmful sites. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/toolbox-for-minecraft-windows-10-game-hack In PDF document text
    • http://lib3tell.stptrisakti.net//repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-black-pants-white-shoes-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/tiktok-free-view-iphone-wallpaper_GM835599320.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-shirts-for-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-jailbreak-hack-noclip-download_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/como-hackear-juego-coin-master_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_off00003093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3093 22096 bytes
SHA-256: bdc61401f4f7d2577a762879e3fb2d336068f9a2d1c786db1970ef19f5f5ca93
font_01_sfnt_off00006182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6182 19252 bytes
SHA-256: 623c4a13fb93527244f4c51110f1d9814ca666c5a00497d7f3fb284e58f61732

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