Malicious PDF — malware analysis report

Static analysis result for SHA-256 941693440ee89bea…

MALICIOUS

PDF

40.7 KB Created: 2021-05-12 18:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 8ad2bb48befb006913f14b692e8c207c SHA-1: f427067cb52d4d1f7fa5ed8c834020542efab891 SHA-256: 941693440ee89bea8f6d5a287ae500a7099a76f4bb5a1c0fa830d3a5fd230499
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hack-tool-access-online-generator-game-hack In PDF document text
    • http://skwolcott.com/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://skwolcott.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/earn-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://skwolcott.com/images/free-spin-coin-master-hack-2021_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_off00004823.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4823 23768 bytes
SHA-256: 52d582ce290ee2d1b6553d6b2427116928e2acf7d9bf40d78e784971ba780f69
font_01_sfnt_off00007e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 17788 bytes
SHA-256: 33ab51800a62a2450932d388ea047aefe8ef17548780c20cda013d20edb28882