Malicious PDF — malware analysis report

Static analysis result for SHA-256 33dbbbddd171659d…

MALICIOUS

PDF

34.2 KB Created: 2021-06-26 15:43:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7577e7027ba8daf6dc2faf0e18d2b1ef SHA-1: 02e037978e40acf78eabd42db75d39e7e38b4a30 SHA-256: 33dbbbddd171659d2c14b9b25ef5bd6cfd6462c6d07323636101775b5b806a75
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a document body that explicitly advertises 'free Robux' and game hacks, aiming to trick users into clicking through to potentially malicious websites. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this lure. While no scripts were extracted, the embedded URLs are the primary indicators of a phishing or scam attempt.

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.co/app/431946152/websites-that-give-you-free-robux-without-human-verification-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/cheat-roblox-menu_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-soldier-gfx-ww2_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/www-roblox-cheat-com_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/ezrewards-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/gain-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-account-generator_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_off00002fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAD 21232 bytes
SHA-256: 3249b7b6ea256aa88e4b63a0d81144b7a5b291743ee36f37575712397aa48bd9
font_01_sfnt_off00005dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD1 19976 bytes
SHA-256: 24b16500d91d71d497b5c2725495e3262ba1e899a897bdd22a8abcf1af4ee572

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