Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b23d06ec9ba533…

MALICIOUS

PDF

44.5 KB Created: 2021-05-14 09:10:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e1c71947d3ae57ccf3fa60cbb219901 SHA-1: 5350cec6ae2841add0ff18ce4638e37f2d4d92a9 SHA-256: 97b23d06ec9ba533672c44f6e51b34b19e0314bd6b8ab3e9e77b4cfa50edf608
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins". The primary link identified is https://netcdn.xyz/app/406889139/real-coin-master-hack-2021-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering lure to drive-by downloads or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/real-coin-master-hack-2021-game-hack In PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/robux-rewards_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-spins-coin-master-unlimited_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_off00004a69.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A69 29592 bytes
SHA-256: 770d1ac6122d1f27f946fd624a3a516af67f760529f6e043cbeb0245a2b84f49
font_01_sfnt_off00008c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1C 18192 bytes
SHA-256: b4c41a46567064d4197865bd819757eb36d0b1d423a991f81f4246b2a9d75138

Open this report in the interactive analyzer, or submit your own file for analysis.