Malicious PDF — malware analysis report

Static analysis result for SHA-256 d256cd52d28e6329…

MALICIOUS

PDF

15.6 KB Created: 2021-07-03 13:42:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 631da8b1fbb16e8bdc8101481633de00 SHA-1: 7b3e6782d8f965e0440674c4417477b39cf7a330 SHA-256: d256cd52d28e6329688964d710e4e8f5b98992e4236217e9d21cccfaa45aec23
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains embedded links that lead to a known malicious redirector infrastructure. The lure text suggests a 'game hack' or 'free generator' to entice users into clicking the malicious link. No scripts were extracted, and the document body primarily consists of obfuscated text and URLs, reinforcing the redirection-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

Heuristics 3

  • 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.
  • 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/479516143/minecraft-bedrock-hacks-windows-10-game-hack In PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/roblox-how-to-get-the-circuit-breaker-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/how-to-get-a-free-robux-code_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/how-to-find-hacks-in-horrorbreak-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn5bojonegoro.sch.id/__statics/gudangsoal/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text

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