Malicious PDF — malware analysis report

Static analysis result for SHA-256 6246263e65e59542…

MALICIOUS

PDF

44.1 KB Created: 2021-06-03 05:10:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8ecf3060b11284089e2375f03ca02d78 SHA-1: acb810e3243bbd64d35b2ef8fd33c7ecf314d540 SHA-256: 6246263e65e595428d51e16fb98f89431f1c13698d78a7bbcf38fe6a2317bc3a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are disguised as game hacks or generators, specifically targeting popular games like Coin Master and Roblox. The primary lure URL, 'https://netcdn.online/app/406889139/gameoffice-net-hack-coin-master-game-hack', suggests a redirection to a site that likely hosts malicious content or phishing pages. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a social engineering tactic to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/gameoffice-net-hack-coin-master-game-hack PDF link annotation
    • http://librarystkippgribl.com//repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/easy-robux-today_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://librarystkippgribl.com//repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://librarystkippgribl.com/repository/coin-master-free-soins_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
stream_004_off0000511b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x511B 25220 bytes
SHA-256: 48fee69ab37c9378de3642a06244bfd07e05cc5fe6abf98add4e5053077a6934
font_01_sfnt_off00008ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD0 17976 bytes
SHA-256: c1b1a17e523e936b349f536870acacfad228736640955d12968774eefee3ad4d

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