Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3392859b112ad8…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 23:51:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 1073651c747a3245719320a8a0786245 SHA-1: e52a28f12804dc97c995a615951ff962c9375b80 SHA-256: 0d3392859b112ad8cbdbfe3d80167ed7caffbed483c49520e760bb0921de8e5a
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-gift-robux-on-mobile-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coin_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/executor-roblox-free-no-hack-promise_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/como-hackear-robux-en-roblox-con-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-and-fun-online-games-like-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-stuff-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-tool-2021-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/bux-blast-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-make-a-roblox-item-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-roblox-ledgendary-swords-rpg_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mcpe-download_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-hack-alan-walker_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/account-stealing-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_off000031c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C9 21892 bytes
SHA-256: a6afa8ad3db1ec6f76b6308f83e0b19bd35cca7788a831e2cc828c447e9fad83
font_01_sfnt_off00006209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6209 19212 bytes
SHA-256: bc5fdf2573ba02d8ebbd4383ba1ec7dafda423df0baa75127e805848098bb58d

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