Malicious PDF — malware analysis report

Static analysis result for SHA-256 d327f90dca691827…

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 16:53:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ba7047653305091dc7c3e0d19ef2f7ab SHA-1: 8f17a1b812f2c5538b1f953e42236de323db5609 SHA-256: d327f90dca6918270069e9c9dc9423cb22a5db133e12719eafbc8a4076e0e75f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure, specifically mentioning 'Roblox Money Hack Robux', to entice users. It contains numerous embedded URLs, with the primary malicious URL being http://netcdn.co/app/431946152/roblox-money-hack-robux-game-hack. The document's structure and embedded links suggest it is designed to redirect users to potentially malicious websites, likely for credential harvesting or malware distribution. No scripts were extracted from this sample.

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.co/app/431946152/roblox-money-hack-robux-game-hack PDF link annotation
    • https://lib.insan-unggul.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-sword-fighting-tournament-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-stuff-on-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/afraid-of-old-roblox-account-being-hacked_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-app-pc_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/pokemon-go-free-8-bit-sprites_GM1094591345.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-get-free-robux-on-phone-no-download_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-phantom-forces-jump-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-skittles-tshirt-roblox_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/roblox-boku-no-hero-academia-hack_GM431946152.pdfIn PDF document text
    • https://lib.insan-unggul.ac.id/repository/free-roblox-redeem-codes-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_off0000329e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329E 22864 bytes
SHA-256: fba599433cdbd5bf1fe74a22d80ded7c940ad70d3797ea8a7bd0ea4921e561b8
font_01_sfnt_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 19172 bytes
SHA-256: 4d30e759edf7ed9e7e43c83aa687478001ecac1175257e9d4d9642f3a907c8b5

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