Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7c651304d65c12…

MALICIOUS

PDF

32.9 KB Created: 2021-07-19 05:42:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a53fb4f8c671fbccc1e9a7935d23fe13 SHA-1: ac4006dfce50ea429f52b2b7c950a0ba7bfc66b6 SHA-256: ab7c651304d65c12bb994fb30e246fffffb5fe3b1b6ba39a5151aaddd095b8af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links, including one to 'netcdn.tw', which is flagged as a malicious redirector. The document body explicitly mentions 'Free Minecraft Premium Account' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', indicating a lure for potentially malicious content. The presence of embedded URLs and the ML classifier's high confidence score suggest a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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.tw/app/479516143/free-minecraft-premium-account-game-hack In PDF document text
    • https://www.sensationboats.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://www.sensationboats.com/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-coin-master-spins-blog_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_off00002cf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF7 22440 bytes
SHA-256: d3c2e86c48877eb930e438da4c57cca43a26285d0c3dedcfc7399a8c0403c77c
font_01_sfnt_off00005eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDA 18264 bytes
SHA-256: d2b91c2a6de84c5c57e6f7a8c0463896f89b33dea675ffd93dbde2c8d35c79e1

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