Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb047993983b1aab…

MALICIOUS

PDF

41.0 KB Created: 2021-05-16 05:00:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94a2031f97a42a9f84636bbb409f06a6 SHA-1: 2de42017427285748fae4bfe6faa3c357eeb0213 SHA-256: eb047993983b1aabefeaa95927987de4861df2798f2e91434e80d3a8dc7d0f36
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising "game hacks" and "free generators" for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-rare-cards-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a lure designed to redirect users to potentially 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/406889139/coin-master-free-rare-cards-game-hack In PDF document text
    • https://www.san-ben.com.tw/upload/files/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/roblox-com-r_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://www.san-ben.com.tw/upload/files/free-800-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_off0000481e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x481E 24824 bytes
SHA-256: 22e90813b796d08168cf8bf5c73e23fa657e8cedea7d49becc2b061029719ea8
font_01_sfnt_off00007f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F24 17884 bytes
SHA-256: 13dc291ccbae0e6dfc42c40dac8b965d117c1bc6200047bd2049e93e12a4bb63

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