Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaeb5ce28d003e2e…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 10:14:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 455baf6a4fa99c24b81e4b95cada8bc7 SHA-1: 73878860c0a88e37e8a0da1f183329dffecb346e SHA-256: eaeb5ce28d003e2e41d2d140245d7722f41938f986777ca52576150c2c322872
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to game hack lures, specifically mentioning 'Coin Master' and 'Roblox'. The primary link points to a URL designed to entice users with 'free spins' and 'game hack' promises. While no scripts were extracted, the presence of multiple malicious-looking URLs and the 'PDF_GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/how-to-get-free-spins-on-coin-master-2021-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/clean-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/get-robux-now_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
stream_004_off000050e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50E7 26780 bytes
SHA-256: 20c82671b966648e1d5940fb0db82e6bd55ed41431d9608b3893a3cdeba56ef1
font_01_sfnt_off00008e5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5A 18452 bytes
SHA-256: 240b90d3225a309efd4f22f05c72cc9c47fc9cdac152c3e16e2e4001354cf22f

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