Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da47bf5c6e8ac08…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 01:33:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7257bc1c636b60ab8cca2185edf14f94 SHA-1: 6d61c9cf09462e6789cc97e3c14f2a6fe67be5b2 SHA-256: 1da47bf5c6e8ac08c5b05102413cfbe77001e2106630084bad0cd6044bfd2ab9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, disguised as a 'free generator' or 'game hack'. The document body and embedded URLs promote lures for free game currency or hacks, aiming to trick users into clicking the malicious links. The primary malicious action observed is the redirection to potentially harmful content via the URL http://netcdn.co/app/431946152/red-boy-hack-roblox-jailbreak-game-hack.

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.co/app/431946152/red-boy-hack-roblox-jailbreak-game-hack In PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/roblox-skin-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/free-coin-master-account_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-no-waiting_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/roblox-hack-robux-2021-pc-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/free-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn12madiun.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_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_off00003119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3119 22608 bytes
SHA-256: 546dc665c3de4fd5bcbb921d553223f11ffe2fcd512f2014c08064149bdc5627
font_01_sfnt_off000063b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B4 19296 bytes
SHA-256: cf93f4f5df37c098f9de9b44acdd97c47904a60543a49aabcabe7f439e698516

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