Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e38f956a01a0c90…

MALICIOUS

PDF

34.3 KB Created: 2021-06-28 17:10:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 9fc69bc3abe36a28937c5c31dd994b44 SHA-1: ed59a1742b2ee87c436f8a1d8a9a108d27bfa98f SHA-256: 4e38f956a01a0c9073dbf9ee66f14be50d721ad745fdb097e7836d395c6e6c2a
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.co/app/431946152/hacks-for-area-27-roblox-game-hack In PDF document text
    • https://lib.unitri.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/assassin-roblox-hack-script-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/trigon-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/rbx-boots-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/tiktok-free-svg_GM835599320.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/roblox-rewards-robux_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id//repository/woman-roblox_GM431946152.pdfIn PDF document text
    • https://lib.unitri.ac.id/repository/ads-for-roblox-games-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_off00002dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD6 23248 bytes
SHA-256: 7919eda41d07ff3bcbfd2b63c561f252c6215ec479c5aadc83df7cb93749708a
font_01_sfnt_off000060e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E2 19000 bytes
SHA-256: f81487b1a7e3b3d5212bec3681c8d4a6903152cceb6e436944fac610191be6a5

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