Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a7696065827f55…

MALICIOUS

PDF

35.1 KB Created: 2021-07-02 01:55:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4c5706b5e0f53a40a2f32f9f0e096942 SHA-1: c8993323df775c668858aefbb43a42fd951cd9c1 SHA-256: 30a7696065827f5500a901557b8d970c0caa66082c832d23343a2364fba76cea
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a primary link to 'netcdn.co' which is flagged as a malicious redirector. The document body and heuristics indicate a lure for 'game hacks' or 'free generators', suggesting the intent is to trick users into downloading a malicious payload. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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.co/app/431946152/hack-coin-roblox-game-hack In PDF document text
    • https://www.fishboat.hr/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-profile-hack_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-robux-games-without-password_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/autospin-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-theme-park-tycoon-2-money-hack_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-robux-site_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/completely-red-pants-for-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/codes-for-free-money-on-roblox-ultimate-driving_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_off0000313f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313F 22888 bytes
SHA-256: eb3924458aadfcdb571ec17f93bbea2a61d6f00a65757757c8680c6d10a406c6
font_01_sfnt_off000064c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C8 18776 bytes
SHA-256: dd15039a4864326ca3d76d17710f53a3213ab9f56bc2ea6856410aff4a485d9a

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