Malicious PDF — malware analysis report

Static analysis result for SHA-256 425529b7842e970b…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 18:42:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 4c0ab8fb1e38ddb024260de3e1edd213 SHA-1: 03e411c2d7a72ff4c51804420d48373957153dca SHA-256: 425529b7842e970bef813ebf9c2b763144d988a259d407d4959d34c6b017e88a
160 Risk Score

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 http://netcdn.tw/app/479516143/minecraft-coins-free-game-hack In PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-get-free-robux-ona-computer-fast-2021_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-robux-games_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/robux-miner_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-speed-hack-robloxity_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/robux-hack-no-survey-and-no-user-id_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/how-to-hack-roblox-players-2021_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-robux-real-roblox_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://wavestelecom.net/uploaded_files/userfiles/files/free-spins-coin-master-2021-glitch_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
font_00_sfnt_off000030f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F7 22184 bytes
SHA-256: b21f08cde985caa0084bd1eec1e90e8decc1ed025933041912dfb502ba879f74
font_01_sfnt_off0000618f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618F 17996 bytes
SHA-256: 57addac7b62f6982da03a34d469d6734b49e3a67e494fbb995a28ec062f8da05

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