Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4e752314dcd6524…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 21:31:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ea0c3e5b625ded03f5711d64d199245e SHA-1: ed143d001d8434f4aa4112ad48e1903ea46736bb SHA-256: c4e752314dcd6524757efdf7b1332de36071e60f3a57c5cb165700a5e4834418
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking embedded links. The primary link, http://netcdn.tw/app/406889139/coin-master-heaven-links-game-hack, redirects to further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attack, likely intended to lead users to download further malware or engage in credential harvesting.

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/406889139/coin-master-heaven-links-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-no-survey-android_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux-2021-easy-no-inspect_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-pokemon-brick-bronze-hack-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/synapse-x-hack-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-glitch-builders-club-for-free-on-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_off0000311a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311A 23156 bytes
SHA-256: 91c814711f525ebcad277c8518f2f4e5c4af1dd8f27e237c39330b201fe3d913
font_01_sfnt_off0000654d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654D 18120 bytes
SHA-256: 74627921072acfa0c03477701ebe3f80c8d36b11fd50d34d5097d83f47cda2ac

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