Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bbe4d0eaf3c0acb…

MALICIOUS

PDF

47.9 KB Created: 2021-06-01 10:51:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e74f14467ca24397c11b98bc660893fa SHA-1: 705beffb2dd029d681628687133d56e2ba111326 SHA-256: 9bbe4d0eaf3c0acbe8b819fd164ebf718cc90dc49686f3723084ce1e0b5e704f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack lure, directing users to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the primary purpose is to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.xyz/app/431946152/newo-icu-roblox-hack-game-hack In PDF document text
    • https://collectrobuxIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/hacking-simulator-roblox-codes_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/robux-for-free-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-free-character-maker_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/break-free-id-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/whatever-floats-your-boat-roblox-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/robux-hack-download_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-do-i-get-my-hacked-robux-back_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-robux-generator-no-verify_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-jailbreak-airdrop-spawn-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000551a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x551A 25448 bytes
SHA-256: cbe2ca0e905d8070510a2bda88ffe4cc40c52aaea39a321aceb002be286122fe
font_01_sfnt_off00008e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0B 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off000097cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CD 18488 bytes
SHA-256: 3264d43670ab24c39b012bcbee0219dc6da69122d41804f77e576d9b71d96fde

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