Malicious PDF — malware analysis report

Static analysis result for SHA-256 4784333cf00291ba…

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 02:50:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: f8e5a227e4fc429bf7b2fedcdca379ec SHA-1: 7a295d3156997e67f444e7fdca07ed7bb909b6af SHA-256: 4784333cf00291ba1a0716c987634bdeeab362755905212c40ef043e4ad5b33f
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/406889139/static-moonactive-net-rewards-game-hack In PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-robux-no-verification-youtube_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-codes-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/assasin-2-roblox-hack-khnif_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-roblox-card-codes-2021-5-25-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/roblox-cheat-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/roblox-cartoony-animation-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/escape-room-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/new-hack-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3tangerang.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.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_off0000337a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337A 23524 bytes
SHA-256: f94984eeceef12681414a872bec14438c045c5d09882f05de62546d031dbe3f1
font_01_sfnt_off00006881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6881 18284 bytes
SHA-256: b288d9ef267feb3cee4f7351aa4425256813d44ff173698cd9488028fdb93443

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