Malicious PDF — malware analysis report

Static analysis result for SHA-256 7938a026b0bc6e1f…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 13:29:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 6ae70b178c862f4e67cf5af83c951025 SHA-1: 8d419a1ef4202af4de572c5cb433f662fea16947 SHA-256: 7938a026b0bc6e1fe0a8925dbf71acb142697683b2e0c1a17bae6bb3dfc67e0f
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/431946152/free-robux-generator-com-roblox-hack-game-hack In PDF document text
    • https://www.zagi.hr/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-roblox-veify-hat_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-place-roblox_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://zagi.hr/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-game-pass-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/ww-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/how-to-get-unlimited-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/comment-avoir-des-robux-gratuit-2021-sur-pc-hack_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/roblox-detects-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/orewards-com-free-robux_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_off00002dac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAC 22536 bytes
SHA-256: c033088c7961ed6447d1444dc3f90b82324604ef05a9171967b443fc97bbf319
font_01_sfnt_off00005fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDD 19324 bytes
SHA-256: b5fe64a349a1260a8bf1e39cb434a35d84e03f20b24c2703f62dd6d7df3547b9