Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eebc1dcbff2b385…

MALICIOUS

PDF

43.0 KB Created: 2021-05-16 09:35:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a8691233e62892e030aad970c291c8c7 SHA-1: 6acec0afd6a94e2acc03356e3e75360345ea5f2b SHA-256: 9eebc1dcbff2b385875a988e79e2cf2289bf9b84426a01e2566b4e652947af37
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to `https://netcdn.xyz/app/431946152/free-robux-no-human-verification-2021-game-hack`, which is flagged as a malicious redirector. The document body and embedded URLs suggest a lure for game-related cheats or currency, a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of malicious links and the ML classification indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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/431946152/free-robux-no-human-verification-2021-game-hack In PDF document text
    • http://szekelymozes.ro/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-get-free-spins-on-coin-master-2021-iphone_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-heaven-free-daily-spins_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
font_00_sfnt_off0000450f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x450F 27536 bytes
SHA-256: bf326d3dce963ee09bf24b29501bc3d3a1f3dc1a6d7fd96f34641b252ebbb029
font_01_sfnt_off00008346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8346 19260 bytes
SHA-256: 6a9b2633b50d097f4b127a07737bc979a0fc1726e0f4efc9f53c1be2676c3116

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