Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc629e8f5e1eb93…

MALICIOUS

PDF

45.0 KB Created: 2021-06-08 09:43:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: d75a5df9c5429f0f0139dc8302d43264 SHA-1: 9b14dfa1eea2492993776d3b062366cac1a3332f SHA-256: 1dc629e8f5e1eb9370d038e97ac4ceca294613713e3d8ef1b4caa0fc83869b75
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/how-to-get-free-robux-no-survey-or-download-2021-game-hack In PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/how-to-get-free-bunny-ears-on-roblox_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/how-to-get-free-skin-in-roblox-strucid_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://gabrielprogramador.com.br/alfaleiloes/upload/files/der-grste-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000525a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x525A 24124 bytes
SHA-256: dd4796007c2a63277f05ea1a561ee83fa65018e1437bc5fdb3938b80a67d5b09
font_01_sfnt_off00008923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8923 19624 bytes
SHA-256: bfc86037bb5defe7693ebeb45881f8eaac159dfd3b955e8cec32dab5a065d4b7

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