Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc4af90dd02d891…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 21:10:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c8431b9028e6622b55c0fad6230d4618 SHA-1: 3e4db8e8a99feddf8532b5049c826ff5e4a36959 SHA-256: 3cc4af90dd02d891138ba5df834e469a0b41cc0b3d590d4bab009418356ead1d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to websites offering game hacks and generators, such as 'coin-master-hack-apk-app-game-hack'. The presence of these lures, combined with a high ML classifier score, indicates a malicious intent to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the document's structure and content strongly suggest it's designed to trick users into downloading malware or visiting phishing pages.

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-hack-apk-app-game-hack PDF link annotation
    • http://stitqi.ac.id/website//repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-handbook_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux-and-tix-no-hack_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-work-get-a-roblox-hack-gui-to-work_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3127 21848 bytes
SHA-256: bd94652c858957eb4b92054641fc8df4c97b1f225592ab931d2c5d7164ac48ca
font_01_sfnt_off00006187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6187 18180 bytes
SHA-256: 5b637a8a036eab97bffff91a515cae84fc40b6bddd589e778cc2e69a12b03167

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