Malicious PDF — malware analysis report

Static analysis result for SHA-256 4786b4450cabb404…

MALICIOUS

PDF

42.4 KB Created: 2021-05-16 23:11:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 572044358d1aaf118f7f58b1b49a751d SHA-1: 18f41cc1b98968394e4b3dc4ebc14da91663a246 SHA-256: 4786b4450cabb40443b35a45c076445d80c277c930091e6fb79ba047d401d480
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/431946152/how-to-get-more-robux-game-hack In PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/get-robux-com_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://himalayandiscoverytrek.com/userfiles/files/best-free-minecraft-server-hosting_GM479516143.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_off000046a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46A7 26620 bytes
SHA-256: edb663c0224cab6f36171e391273df68f5cbd4275aa6a63b09f87539c618dd29
font_01_sfnt_off00008332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8332 18312 bytes
SHA-256: b63754bab8a539e11eebb32f86c31dbe9ceb60be690df901f3a3ba32c84f6f1e