Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e725cb6227a4ff…

MALICIOUS

PDF

36.0 KB Created: 2021-05-21 09:37:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1d45a4f0235f31db21a68d625f415ebb SHA-1: aa64a24dc8bd3596dd1786c7644642a430c76b71 SHA-256: 97e725cb6227a4fff7521b9994598feb27b032cfb1fce57cfc90f976323757ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to websites offering 'game hacks' and 'free spins', which are common lures for malicious downloads. The ML classifier also flagged this PDF as malicious. The embedded links likely serve as a delivery mechanism for further stages of an attack, potentially involving JavaScript execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-daily-free-spin-app-game-hack In PDF document text
    • https://kunstmalen.ch/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/can-you-get-free-robux-on-roblox_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_002_off0000334d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x334D 24768 bytes
SHA-256: 0418f01ac1d0bf9bd381ba955eaa57cd6af6c9cfdbce77c070a2524aaa3a42d1
font_01_sfnt_off00006b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B35 18308 bytes
SHA-256: f9a3a46f76b0cae8a4d9bd0baf07f2a5aefd3f4554b846be65e0119e8f17791d

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