Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3e4161bbab35261…

MALICIOUS

PDF

32.7 KB Created: 2021-06-25 07:39:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ae4ebcbf0fafe13c195dbafa0def1803 SHA-1: ee1c8d557ab26bcd0d4a595719b4160402a379d2 SHA-256: b3e4161bbab352610cfc596e9b9f8d15b4a2b70e54c7dae6fe7ceb0ee6dc6b25
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 0.9824

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/roboxy-com-for-robux-free-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/robux-com-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/tiktok-free-zong_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/vermillion-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-apk-download-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-gameswithout-password_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-u-get-free-robux-2021_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_off00002a03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A03 22116 bytes
SHA-256: 74a69fec8e71574a97c25cfa6cc069ea454bcf337e704051445e2123af94f455
font_01_sfnt_off00005adf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADF 19156 bytes
SHA-256: 4cd04b3d03c4513d9051f411bbdd1a5e6dead1a3c1bf0e734f8b988faa9d35a7

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