Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03d2bf79b542e7b…

MALICIOUS

PDF

45.1 KB Created: 2021-05-16 10:54:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 223014f63b1d75cfc39b25ddef6d7f39 SHA-1: 26a3cad1266eedefe4fd52924abaab3e947ab229 SHA-256: c03d2bf79b542e7b369d4fe748fdefd19599a07fe525d97b0a1cc87f9fe286c1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for game hacks and redirects to known malicious infrastructure at netcdn.xyz. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely using embedded JavaScript to facilitate the redirection. The primary goal appears to be directing users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/how-to-get-2021-robux-for-free-game-hack In PDF document text
    • https://www.kambati.co.za/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/www-free-robux_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://www.kambati.co.za/images/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-robux-pins_GM431946152.pdfIn PDF document text
    • https://www.kambati.co.za/images/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/cone-master_GM406889139.pdfIn PDF document text
    • https://www.kambati.co.za/images/free-robux-generator-no-survey-no-download-no-human-verification_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
stream_003_off00004a1e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A1E 30108 bytes
SHA-256: 8a6048b46a4c79b7d207ff97dfa3fa2daa0950d7f169d05f47ec9e415f31027f
font_01_sfnt_off00008c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C94 18684 bytes
SHA-256: 6e9c0eecafd635f65838c8dbfb1e23e8457e4c9239d4b33e445d621fd980b18f

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