Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e4b6e4a8a99582b…

MALICIOUS

PDF

33.9 KB Created: 2021-07-08 23:54:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3298e23e853ba02bf0716799d71fb9f4 SHA-1: c4cb7fefc8273a54c0403524c154bb70622508cb SHA-256: 0e4b6e4a8a99582b3a7066469a2d0d797ab6b3f136d6e364b9aa53c30aca8ac2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/835599320/tiktok-free-open-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id//repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/safe-cheat-engines-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-2021-android-fast_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-on-roblox-no-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-lucky-blocks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-cheat-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robloxcom-free-robux-games_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-hack-on-laptop-july-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-avatar-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-jailbreak-roblox-2021-rocketfull_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-money-on-roblox-ultimate-drivin_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/f12-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_off00002e26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E26 23008 bytes
SHA-256: 9b41245b0e08948998d47d17dff189f4175253499acb41ba1e83a00467c02e00
font_01_sfnt_off00006208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6208 18148 bytes
SHA-256: ec23f2db930c7d08ba7d1069b51d21832357214dd35ce1c03830001ef4de4be7

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