Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6dbebddd0755201…

MALICIOUS

PDF

44.3 KB Created: 2021-05-19 16:21:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f115f13060afa6dce10ee8cf4945a443 SHA-1: 75acbfb916c6d19bfc80308227345937c1c21c58 SHA-256: c6dbebddd07552017074daecb5e5bb01d8bc00c5fa02a2859529a0b53cfff4f2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary redirect URL is https://netcdn.xyz/app/431946152/info-roblox-com-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a social engineering lure designed to lead users to potentially harmful content.

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/info-roblox-com-robux-game-hack In PDF document text
    • http://hilro.co.za/images/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://hilro.co.za/images/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • http://hilro.co.za/images/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://hilro.co.za/images/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://hilro.co.za/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/get-robux-today_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://hilro.co.za/images/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://hilro.co.za/images/coin-master-apk-hacked-3526_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
stream_003_off000049d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D7 28016 bytes
SHA-256: 8de9d0d63ba4849e6c8dfb9173cbabb05b6b1d3f61554bd5d34f1dd116c1fce1
font_01_sfnt_off00008b33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B33 18184 bytes
SHA-256: 2666f19638e8a85676fd26a40fcd2c9ad598b57ed36ce75be6242751bafc6488

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