Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a3be1ee1f0d612c…

MALICIOUS

PDF

34.9 KB Created: 2021-07-07 06:06:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d19b0dd9f483528e8a8ce9a75f85e9c5 SHA-1: 0c084f9742d13d29ae160c6a486f4e457acf693d SHA-256: 4a3be1ee1f0d612c96a5a7e0480aca6246eaa5bf9f340894458175bf9126a3da
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/free-coins-coin-master-blog-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/robuxhackjs_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-today-youtube_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/3-games-that-promise-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-u-get-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-if-your-a-kid_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-free-robuks_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-content-deleted_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-robux-hack-no-download-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-badge-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/master-coin-free_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-gameswithout-password_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_off000030e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E7 23432 bytes
SHA-256: 208165db9bf5c47e3f1d96253a66cdd33c11ef2a68356b9066452c0702773605
font_01_sfnt_off000065a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A7 18288 bytes
SHA-256: 4d8a9a5f845e6a4543ff8d893a9e279bb8bc764ff82ea70c3d9fb3020af74c46

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