Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f50e9242ace60d…

MALICIOUS

PDF

35.2 KB Created: 2021-05-13 17:03:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 12e487eb23bd40b8e9ff16449913e100 SHA-1: 43ac54d2af47704e2d9415bef37e4de96cc5223e SHA-256: 74f50e9242ace60d9c673c76e85c6d344aaba87e8b2b226e752010f09bbadb28
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' or game hacks. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-without-verification-or-survey-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to potentially harmful websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • 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.
  • 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-without-verification-or-survey-game-hack In PDF document text
    • http://www.occquimica.com.br/images/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.occquimica.com.br/images/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://www.occquimica.com.br/images/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.occquimica.com.br/images/free-robux-only-username_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
font_00_sfnt_off00004a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A41 25772 bytes
SHA-256: e6f10ffb48745268091a5d51724cad6831650aff27a37523134dbe2773725ff0
font_01_sfnt_off0000845d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845D 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139

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