Malicious PDF — malware analysis report

Static analysis result for SHA-256 125d760b7e4e3f25…

MALICIOUS

PDF

42.1 KB Created: 2021-05-15 05:12:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 29c2c0c25bf49371b917ad35c906013b SHA-1: df5c71a6ebde7cdaabd0d1ed56ac63001e58d46d SHA-256: 125d760b7e4e3f2510cb4559619a7c065a6cec5e04968bcfa4a744b6b3c86d1b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and potentially malicious domains, disguised as "game hacks" and "free spins" for popular games. The heuristic firings indicate these links lead to known malicious infrastructure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-spin-link-new-game-hack In PDF document text
    • http://eastwestmacrobiotics.com/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-bobux_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://eastwestmacrobiotics.com/images/roblox-robux-hack-generator_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_003_off00004a3f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A3F 24764 bytes
SHA-256: 22cde1e5d69c3d7233abfbdaf277ef6a5dd0076da11a20cb8da6d66c1d4af492
font_01_sfnt_off0000826f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x826F 18220 bytes
SHA-256: 416b3ddd7174a4565faeadac95af623a4bced54c3ba49935edef75467b8b172c

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