Malicious PDF — malware analysis report

Static analysis result for SHA-256 10ec06c6f354c067…

MALICIOUS

PDF

35.5 KB Created: 2021-06-25 04:38:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7145b1c92a2a5e741947b20f2db80de4 SHA-1: 30f3695fad9bf6d0d22c866d99629833f443201f SHA-256: 10ec06c6f354c067b69c9f929970c8eb78a3d22b1da048127592c8f67539b24f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to a "Roblox Hack Deutsch Auf Pc" and links to a redirector URL. The ML classifier strongly indicates maliciousness. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into downloading a second-stage payload, likely through the provided link.

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-hack-deutsch-auf-pc-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/free-robux-no-survey-no-download-no-offers_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-stuff-on-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-parche-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/is-there-a-free-coding-platform-for-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-logo-favor-bag_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-twisted-murderer-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-game-free-items_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-use-redstone_GM479516143.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_off000031b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B8 22704 bytes
SHA-256: ed06c47046d6859d25dc49c72d76494d12450be1975061cefc71b3f894008bf6
font_01_sfnt_off000064de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DE 19388 bytes
SHA-256: d1718bcfe0eecb9399f4dc373c5d6d6806add2f099e0dcf498ba5f16aa56036c

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