Malicious PDF — malware analysis report

Static analysis result for SHA-256 76287e86b56a9d9a…

MALICIOUS

PDF

41.3 KB Created: 2021-05-11 05:08:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd1b35ae2ce2638f62ea0f82739aefcb SHA-1: 2fa8dd6893b2cf868ed79d664c022990db2fafa9 SHA-256: 76287e86b56a9d9a48749ebd0518993806aae9951f51e7857939212edd76168b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure, specifically advertising "game hacks" and "free generators" for popular games. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-free-gifts-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack designed to lead users to potentially malicious websites or phishing pages.

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-gifts-game-hack In PDF document text
    • http://tah-li.com/images/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://tah-li.com/images/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://tah-li.com/images/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • http://tah-li.com/images/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://tah-li.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tah-li.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://tah-li.com/images/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://tah-li.com/images/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • http://tah-li.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://tah-li.com/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://tah-li.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004678.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4678 25516 bytes
SHA-256: df581346ed9325b3e23345a265b32ffac0d04d1cbc3bfd00f309801269468910
font_01_sfnt_off000080d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D7 17712 bytes
SHA-256: 401d56b29285354d6954c3c26e793cbeb56329cdc5209d9139ec018457d4ba23

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