Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3eab888034cbfca…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 14:32:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 1ff3a3ce1074e56b9eee19ce0fe5f5ae SHA-1: 442e58e15b2c2119affafe8d92bf69be6b8f099e SHA-256: d3eab888034cbfca19fe8fb5e70785bbe60bb9629c08c1b3c1619005f69c3a36
160 Risk Score

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/406889139/coin-master-free-spins-and-coins-today-gift-reward-game-hack In PDF document text
    • http://knjiznica-oroslavje.hr/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/blox-piece-roblox-hack_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/gym-simulator-2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-robux-100-always-working-2021_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-the-plaza-money-hack_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/cheats-for-super-power-training-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/gain-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-hack-no-download-gui_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/how-to-make-hot-sauce-roblox-hack_GM431946152.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_002_off00002f77.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F77 23116 bytes
SHA-256: 07eb1f54f949d06072522b58521f2e5dd1ade71c25468e161ae513720dadf575
font_01_sfnt_off000063ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 18692 bytes
SHA-256: d31088ae19f241ea86c3227f133fc8e6698cecaa627da06b5b2cde690df300ac

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