Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d82ef22c9a77947…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 21:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-18
MD5: be153482890595c5c0403a4f9d460079 SHA-1: 7d4cba262592413d3c9bf048d177e01c91b2065b SHA-256: 5d82ef22c9a77947012bc56d671f825dbd0da317b7d90d1b5d94b95fc485a791
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/406889139/free-spin-coin-master-apk-game-hack In PDF document text
    • http://perpus.polbitrada.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-to-get-free-robux-no-verifications-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/youtube-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/shadow-raid-cheats-roblox-notoriety_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/codes-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-abs-tshirt-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-g_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/building-games-like-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-hack-the-free-generator-robuxgaminghacking_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/earn-robux-free-surveys_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-link-spin_GM406889139.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_off000032bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32BB 22672 bytes
SHA-256: 10108c6dcbfad86dcbbfaf9661a208a3f98d2090ae0fb120df2955be1ea59f48
font_01_sfnt_off00006566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6566 18344 bytes
SHA-256: 7d9887165ef16feadfba3a4a15f66fbc2523fe3814b25ea6526ef71165c50439