Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c8d2dbd201dfb5…

MALICIOUS

PDF

42.8 KB Created: 2021-05-15 23:13:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94b6047a63c61c60568cb5fa08b694d4 SHA-1: 542c31f8dde19b3bb4ab4eec20fedaaffab07039 SHA-256: 69c8d2dbd201dfb57a420936d4d5aec35cfbb98d80c4cd53b0b9e697acf4ee97
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "free exploits for Roblox" and "game hacks". The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-exploits-for-roblox-game-hack. While no scripts were explicitly extracted, the presence of multiple malicious redirector links and the ML classifier's high confidence score indicate a clear intent to lead users to harmful content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/free-exploits-for-roblox-game-hack In PDF document text
    • http://www.vktzunami.cz/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://www.vktzunami.cz/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-hack-free-spins_GM406889139.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_off00004887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4887 25844 bytes
SHA-256: 061ea97f74ad57eb922e44394b89e054d78769f672485e592409140831f2953a
font_01_sfnt_off000084ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84AB 18348 bytes
SHA-256: 3eb1125b3232d06dc8927376afe50af41f8c0a9e23720a9da0c3984e77695e12

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