Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3e23e90a8401f3…

MALICIOUS

PDF

32.6 KB Created: 2021-07-05 06:00:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 5aca3cbabdb59c0d680c83565ead493a SHA-1: 86880f7f540496582141e487561da830b0bc7ed9 SHA-256: 0d3e23e90a8401f37aa91f23ea80a9e5d74973d1b93485f02107c376ba0015ef
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-infinite-robux-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacked-script-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-can-i-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/best-pklayed-games-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/infinite-robux-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacks-roblox-pc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/114-hacks_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-spin-wheel-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-mm2-free-knife-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-clothes-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/best-free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/best-free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/best-free-games-to-play-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-credit-card-generator_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_off00002a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A85 21876 bytes
SHA-256: ab4e049a61a3bb888349ee83a51d815d7623d4d3465dfc6c67bb51059e98fcd2
font_01_sfnt_off00005ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACE 18940 bytes
SHA-256: 4ecfdb40bf37a08127f03997f4977f5df26c022209d08e9f120eb32a8243af90

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