Malicious PDF — malware analysis report

Static analysis result for SHA-256 24cee3c665503e2a…

MALICIOUS

PDF

41.3 KB Created: 2021-05-16 06:37:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 169cc91101796a361dd8924074947097 SHA-1: c7dafced195d0df42fecc2a9e7dbc83f5ce18c66 SHA-256: 24cee3c665503e2a8191b8159b6021fbf0df4647a9a009b5b9f1c4591b641be6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games. The embedded URLs, such as https://netcdn.xyz/app/406889139/coin-master-free-download-pc-game-hack, are designed to lead users to potentially harmful content or further malware. The ML classifier strongly indicated maliciousness, supporting the observed redirection behavior.

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/406889139/coin-master-free-download-pc-game-hack In PDF document text
    • http://ratchadatitan.com/UserFiles/File/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-robux_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/robux-xyz_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/roblox-games-that-give-you-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
stream_003_off00004886.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4886 23904 bytes
SHA-256: 5f86609ade12f3bd74e1421e676de91f0218a7870222e2936380c972def133c4
font_01_sfnt_off00007e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7D 18444 bytes
SHA-256: b0499442804c302970887a2d9cba6ef3f31768e477807758de6572ac3a0df5c2

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