Malicious PDF — malware analysis report

Static analysis result for SHA-256 794b5dbee266695b…

MALICIOUS

PDF

33.0 KB Created: 2021-06-18 04:04:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 327b1014dde43232318be8714a515290 SHA-1: ab1d19c577bea159fe509e28af3d4c2b17de7fd4 SHA-256: 794b5dbee266695b52fbda68d2ac8f0088b28dd2cb4a6d00610c00348f76d553
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lure users with game hack promises, such as 'Roblox Clover Online Hack' and 'CLICK HERE TO ACCESS ROBUX GENERATOR'. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-clover-online-hack-game-hack. This suggests a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/roblox-clover-online-hack-game-hack PDF link annotation
    • http://opac.stieimalang.ac.id/repository/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/strucid-aimbot_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/wwwrobux-cheat-us-unlimited_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-vip-server-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-to-scam-for-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/spin-coin_GM406889139.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_off000029ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29ED 22588 bytes
SHA-256: 05a471a6054e72aa5b50b949f0aeee4a4b2b22e4051bfff4bfd30e9ed91e8b0a
font_01_sfnt_off00005cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAE 18892 bytes
SHA-256: db358b33fc05724311d36fd024c8ca55e160d1a2c2858c53778095def5b82f2c

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