Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e51e49ac659083…

MALICIOUS

PDF

43.5 KB Created: 2021-05-14 11:38:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e3a251f1b6588aaed6ed9cab9cbfae61 SHA-1: fad8e60de02f2d5ce5b68d70bd5cbcda7656e44e SHA-256: 11e51e49ac659083ead443d3786abf9da1f306cc6b27f39310a3340ceba7389f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'Coin Master' hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-online-hack-generator-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector lure, likely intended to lead users to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-online-hack-generator-game-hack In PDF document text
    • http://www.habitas.it/images/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • http://www.habitas.it/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.habitas.it/images/free-roblox-card_GM431946152.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_off00004619.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4619 24456 bytes
SHA-256: fabb0f25ae7abed4c1931b8a60f0bc606802d2c98fc1a489aa8d146c5027372f
font_01_sfnt_off00007dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD9 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off000088b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B7 17788 bytes
SHA-256: ad851a765ea361b6c06a758d3cf3a23c1a0806d07c65aa9d09c455148703e502

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