Malicious PDF — malware analysis report

Static analysis result for SHA-256 42504c01ea81b96d…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 17:38:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 53eefea59be669ab2b627641969eb20c SHA-1: f09eb5daf877e331c28f4b7c674520a6273bd15b SHA-256: 42504c01ea81b96d1e854524ff9a34ff960ae564a54788f78361d790849e49b4
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/how-do-i-earn-robux-game-hack In PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/hack-formum-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/inject-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/roblox-free-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/free-toys-codes-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/roblox-free-gift-card-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/how-to-get-free-tiktok-like_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1batam.sch.id/__statics/gudangsoal/files/boku-no-roblox-hack-legendary-quirks_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_off000033a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A2 21772 bytes
SHA-256: c1a3c5c1bc43211acf063b2d2c11661237c90fd28ad2b60aa96fbf5374ee7def
font_01_sfnt_off000063ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 18884 bytes
SHA-256: 0a8d7a379d75a74d52be7bd4216aad0700edb3e310f87c33ee417f3335b78a59

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