Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddaff383b217075…

MALICIOUS

PDF

52.4 KB Created: 2021-06-07 00:22:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-26
MD5: f19fd52532d63bd6fa4656e89f79a722 SHA-1: 24669acaacad0cfa4a2b22be60d75b00a69b8010 SHA-256: 3ddaff383b217075adf2c4bde887ba2f490c65f682248369df62e9858025f5d9
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9586

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.tw/app/431946152/roblox-tix-hack-no-survey-game-hack In PDF document text
    • http://ggmtc.net/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-box_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52DF 25692 bytes
SHA-256: d5c0f42b94d807e6bdda3493050bc3dcae3df4185c40331cf4d359b7e1a0ee5c
font_01_sfnt_off00008ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDC 8252 bytes
SHA-256: 7ebedd6b182173c8e55836cb0d114b2c4a0ac85c96a51b9f0706c935f8415fea
font_02_sfnt_off0000a8f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F1 18736 bytes
SHA-256: f7a260144557486e7a89630770386f6344e5c525cc4531ecb9f042247f807631

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