Malicious PDF — malware analysis report

Static analysis result for SHA-256 7934cd9e77972609…

MALICIOUS

PDF

38.8 KB Created: 2021-06-30 03:21:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 30b857c39a92e94ee856e1bb1cb2403e SHA-1: 4dbc55448a38ee060bf9b386fece9fcd48a3b828 SHA-256: 7934cd9e779726095d006f97bcf985b3df34bcfb329e166ecd742f0a01bf9300
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.co/app/431946152/roblox-gift-free-robux-game-hack In PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/hack-para-tener-robux-gratis-sorteo-de-100-robux_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/what-is-the-april-1st-stickmasterluke-hack-face-roblox-called_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/noob-vs-pro-vs-hacker-vs-god-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.elsire.co.in/uploaded_files/userfiles/files/how-do-you-get-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_off0000405b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x405B 22692 bytes
SHA-256: 5013bf1fe69bad55aa0322a065d7e17b3a49cb0948496a7c4e51441701c0d771
font_01_sfnt_off0000730f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730F 19012 bytes
SHA-256: 8b2e6ae46debe388c3c616d1ac0155d585341f13e375f4841016b5601f48d46b

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