Malicious PDF — malware analysis report

Static analysis result for SHA-256 710c826090bb480d…

MALICIOUS

PDF

32.9 KB Created: 2021-06-29 17:30:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 057b6a20e0c567d886243eab4ed37b79 SHA-1: 3ddd04947e4b6064b88a78dc889872793b9d7a0e SHA-256: 710c826090bb480d1347a1709798cd7368351627b5a4c86e89dda93b7a84374f
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/roblox-hack-2021-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/tiktok-free-like-and-views_GM835599320.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/generator-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-accounts-made-50-days-old_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-free-no-robot_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-do-deals_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/zombie-strike-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A58 22168 bytes
SHA-256: 765e4f29afd38e6060655054a721c24a0ec45c712a5c2939428bb4e782faadd9
font_01_sfnt_off00005b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9C 19056 bytes
SHA-256: 98be41374c31724b7a878275a9dc475d7e9908887f4f5935c763b7161266aa61

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