Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d0c6689a102d38…

MALICIOUS

PDF

35.2 KB Created: 2021-05-23 08:46:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: b336ef050ed22542085557befae76202 SHA-1: 6e7f28e12c1c8df39da16ecb2149cc3cb94f722e SHA-256: c5d0c6689a102d3870aa5679c5c7cdf0661f702b54e35a7749bd581f24ec960a
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/479516143/minecraft-mac-free-game-hack In PDF document text
    • http://www.nicoifruttidelchicco.org/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://www.nicoifruttidelchicco.org/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.nicoifruttidelchicco.org/images/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://www.nicoifruttidelchicco.org/images/how-to-get-free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://www.nicoifruttidelchicco.org/images/how-to-hack-roblox-accounts-2021-easy_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_002_off00003452.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3452 24328 bytes
SHA-256: 40a3178510e353e5520f29ca8ba522d4605935c8383cbb0f20852ff7e87ded58
font_01_sfnt_off00006a6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6E 17568 bytes
SHA-256: 2778e064ee8e4e3a4bd3984a17bb7eaaeefaa41a67eb131b8ade69fe1653bbfc

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