Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddc9aa12228fec9…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 13:31:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: d28d6735ad980b686ef408565be5dfea SHA-1: 0725da63f5a3698c3866076178dea7493718e454 SHA-256: 3ddc9aa12228fec9b4ca80b392b6fcb45573800849c11b246aa69af741fa3d8b
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.co/app/431946152/i-got-hacked-on-roblox-game-hack In PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/free-headphones-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/robux-game-com_GM431946152.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/roblox-best-outfits-free_GM431946152.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/pubg-uc-via-login_GM1330123889.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/free-800-robux_GM431946152.pdfIn PDF document text
    • http://greenpalm.com.tw/uploads/ckfinder/userfiles/files/100-free-spins-coin-master-link_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_off00003053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3053 22236 bytes
SHA-256: 7d34b2f67bf1498731e24e588453966003ade50cbaa74f0920ffc5465dd2eb81
font_01_sfnt_off000061df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DF 18936 bytes
SHA-256: 112e2aac86dc5882cba9c563e06e02dca1195725cb6dbf6190617fb595086b1d