Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7d304a9fde241a…

MALICIOUS

PDF

41.9 KB Created: 2021-05-19 17:36:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 111430fb08f87c9b92804a21299b2c5f SHA-1: ada69c01aafeae8b7f4e5caa98a59c6ca067da45 SHA-256: ee7d304a9fde241ac3d76e075df0a4e30c8b5c41f7ed99797e76b9886acbbf9f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, specifically advertising 'free generator / game hack' lures for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/20-free-spin-link-coin-master-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a social engineering attack designed to lead users to potentially malicious content or further downloads.

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/406889139/20-free-spin-link-coin-master-game-hack In PDF document text
    • https://sitam.co.in/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/get-robux-today_GM431946152.pdfIn PDF document text
    • https://sitam.co.in/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://sitam.co.in/images/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://sitam.co.in/images/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://sitam.co.in/images/hack-coin-master-1_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
stream_003_off0000483c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x483C 25384 bytes
SHA-256: cdec6f40fece4fd1c444cb6e9066c7c8536fbe02fce8bca18579eda9e9829aff
font_01_sfnt_off0000813c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813C 18352 bytes
SHA-256: 4dd766e4f27b72d6e8e66c439aca94e2b7f3531775cf9d126f518490910b573e

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