Malicious PDF — malware analysis report

Static analysis result for SHA-256 305dcb81be6c0584…

MALICIOUS

PDF

47.4 KB Created: 2021-06-07 16:13:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 05024647a4da67485db5012a853e2746 SHA-1: 6a0fd24dfa563f5ab0d131042de118d2904d4a8d SHA-256: 305dcb81be6c05844a93ae0fbe0084a0433c5d955159cd6462eec6c87ba4cb5a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document uses a lure related to 'free Robux' and game hacks to entice users. It contains multiple embedded URLs pointing to similar scam-related content, suggesting a phishing or scamming attempt. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.tw/app/431946152/free-robux-100-no-human-verification-game-hack PDF link annotation
    • http://fairwaygolftravel.co.uk/images/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50CD 23860 bytes
SHA-256: 77d4bfc75d676b7fc39343e2f5b392120fdb66671ab53f3701cbc3e447ef7aa8
font_01_sfnt_off0000872c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872C 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000093d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D4 19140 bytes
SHA-256: bfbe43198691e716b8303eb3ab26a061e0ac439ba80b405eb08f5293293b67be

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