Malicious PDF — malware analysis report

Static analysis result for SHA-256 da833ea944280db9…

MALICIOUS

PDF

45.5 KB Created: 2021-05-17 17:09:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7960dfa1a0fba587fe0f461f1778d3ed SHA-1: 954441e6ed980d3444c06db4b2954a0ce0510809 SHA-256: da833ea944280db9e83fffd8165d7a9e066f751456cd0360e2b08741faff3323
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and game hack generators, indicating a lure for potentially malicious content. The ML classifier also flagged the PDF as malicious. While no scripts were directly extracted, the embedded links and the nature of the lures suggest an attempt to drive users to external, potentially harmful, sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/479516143/plug-toolbox-for-minecraft-free-ios-game-hack In PDF document text
    • http://cmme.it/images/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://cmme.it/images/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • http://cmme.it/images/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://cmme.it/images/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://cmme.it/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://cmme.it/images/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://cmme.it/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/free-spins-coin-master-2021_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_off00004a96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A96 25212 bytes
SHA-256: 9c339ac970bed14c4892a8441bfb20e1a2b58d9662b75c0a3cf887a9fe3c63ff
font_01_sfnt_off0000841a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x841A 2856 bytes
SHA-256: 8c5d9bcb386d88c7f99323d8d482e46ea21dea038a5b842744dd5d39b26b2c44
font_02_sfnt_off00008df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF1 18736 bytes
SHA-256: 9cf7fe8b5647e01d4eb492bc675b0c64d11ed2e32af9da0d2909089a9be9f8b8

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