Malicious PDF — malware analysis report

Static analysis result for SHA-256 697d14e76b09c2d0…

MALICIOUS

PDF

46.8 KB Created: 2021-05-15 03:37:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2d7bd7a4fa8c7248ffaf85b87a2f186d SHA-1: bbe6d44b080316292bfccfbfc3d84ec09ce5062f SHA-256: 697d14e76b09c2d0d07a35609e8d2d1defaf0f912ed235c99b0bfc16c9309803
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting "game hacks" and "free spins" for popular games. The ML classifier also flagged this PDF as malicious. The embedded URLs suggest a phishing or scam attempt designed to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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-spins-app-for-iphone-game-hack In PDF document text
    • http://maslabaou.com/images/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-dot-xyz_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/mathep_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b2c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B2C 24544 bytes
SHA-256: d5fcd3e553e478c9a54bb7a7080e5023d59008394cecaeab0e0b5f533d3899c0
font_01_sfnt_off0000835e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x835E 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_02_sfnt_off00009577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9577 18052 bytes
SHA-256: 4aba056016aeb65aeba62e03d7234ea924a4b970c64610ba6e784186ab2969a1

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