Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd752dbce3014102…

MALICIOUS

PDF

35.9 KB Created: 2021-07-09 01:14:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 994c29524d558e8f2dc0a347aa7baf97 SHA-1: a0941ab0c3ab62bbf611c202a91348c06242415d SHA-256: cd752dbce30141020e16cc79118a32d6e35200125acc260591d6edd7675d5740
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/431946152/free-robux-generator-no-human-verification-2021-game-hack In PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/roblox-undertale-game-script-hack_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-inspect-element-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/get-free-robux-eu5_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/hack-roblox-void_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/meepcity-robux-hack_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-roblox-promo-code-genarator_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-the-zombie-animashon-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-download_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_off000032a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A8 22724 bytes
SHA-256: 1a48bc22422818cb6e1fb9f635c9e36d2543c6b0c0c21371e19c468d19d1d875
font_01_sfnt_off00006544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6544 19736 bytes
SHA-256: 09f061b847c63ff59f035118bd628253d90c30315b77b042e81f05fdb0d3e9b1

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