Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e446933c3a154ba…

MALICIOUS

PDF

41.0 KB Created: 2021-05-14 09:18:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d21bcf5d81d608ba12d463d3b3898970 SHA-1: a4bababb73bf1b59c94d5f24c64d86b79a0df8e4 SHA-256: 9e446933c3a154ba4a290ec78593ab69bb3e2864ad30cfaa07adb2584f05ae59
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically promoting 'free generators' for popular games. The primary link leads to a known malicious redirector, suggesting a phishing or scam attempt. While no scripts were extracted, the embedded URLs and heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful sites.

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/get-free-cards-for-coin-master-game-hack In PDF document text
    • http://only1you.ru/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/original-roblox_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/free-coin-master-spins-blog_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_off00004782.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4782 24492 bytes
SHA-256: 4845fff99551f911f8ea79a51cdf76c321d6754080e9fb45fd8357b01dba5409
font_01_sfnt_off00007f11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F11 17884 bytes
SHA-256: 2df54ae97b7ad974d0fd113118d78f36970e506fc507bb8e05cd99f47a54c96c

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