Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6dd9f34f564ca3…

MALICIOUS

PDF

35.9 KB Created: 2021-07-06 05:20:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 8df8618a7ded4ea3d355888291c87d8c SHA-1: 113885dde1789ee5534f6fe9e1c852a5ff993791 SHA-256: 2b6dd9f34f564ca3bd7e2daf3f94cd5f35425e375f9e4f2cb07fd6ddee513f21
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-to-get-free-robux-hack-2021-game-hack In PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-admin-hack-unpatched_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/google-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-codes-2021-live_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/cheat-engine-64-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-no-human-verification-pc_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-roblox-hacker-co_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-hutt-cartel-tatooine-free_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-hack-someone-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-realms-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-super-checkpoint-cheats-xbox-one_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/hey-google-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-follower-bot-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/level-7-hack-roblox_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_off000032b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B7 22780 bytes
SHA-256: e7890f0e3b8f7eb67b8a7c694336b627c338c29f4c25ad1d8a9c25459fd8de15
font_01_sfnt_off000065b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B6 19556 bytes
SHA-256: f212cd4c9928ae438aa9e71512a10d010177ec0841fcd267cfedc658cf456714

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