Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c75adacd8672a1…

MALICIOUS

PDF

45.3 KB Created: 2021-06-11 09:25:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f9af630990d8e27aa1ea5a34f08dcfa SHA-1: b5ede5883fb0b5f1c7d40b76ac77da9aa9fdd1ef SHA-256: 14c75adacd8672a12cf5e93f1ce56cc7d19449db46af54a71f3e0be787cadb42
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and generators. The primary lure directs users to 'https://netcdn.tw/app/431946152/free-robux-without-app-download-game-hack', which likely serves as a gateway to further malicious content or downloads. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/free-robux-without-app-download-game-hack In PDF document text
    • https://javisintlmedia.com/images/free-robux-live_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-sign-up-for-free_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-obbys-may-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/exe-roblox-hack_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-hack-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-fly-hack-in-roblox-no-download_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/robux-generator_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-no-human-verification-or-survey-or-download_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
font_00_sfnt_off00005053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5053 25384 bytes
SHA-256: 4a02bacb90321d659a62af8a0e467a5fff36226bc24d00457e728e28745fde23
font_01_sfnt_off00008ab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB3 19584 bytes
SHA-256: 7fb4d6cf797ccb8d1c17786382b10ee980d7cf4b62b10ebd32708b203594c27d