Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3c055a767352c2…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 12:14:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2f86683b10594157d9971f3448b584b1 SHA-1: 0c11b795002b060b3eb6a75864eb7942a083ecec SHA-256: 7d3c055a767352c227589466085cd8518df162236f59beec83e1f1cee0963345
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into clicking a link. The primary link, http://netcdn.co/app/431946152/clash-royale-legendary-cards-hack-roblox-game-hack, is presented as a generator for game items. While no scripts were extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely leading to a malicious website or a second-stage download.

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/clash-royale-legendary-cards-hack-roblox-game-hack PDF link annotation
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-items-with-this-admin-code_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/roblox-sword-simulator-power-hack_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-hack-into-roblox-scam-bots_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/project-zero-roblox-free_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/download-synapse-roblox-free_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/roblox-hack-super-power-training-simulator_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-robux-no-human-verifacaition_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/magitan-roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/wild-and-free-id-roblox-code_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/steal-peoples-robux-hack_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/where-to-get-robux_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_off00003332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3332 22048 bytes
SHA-256: b9e5ad4bc4c31444268e27c533b80209a3ebb57ecc147ba72f408740c1964b8b
font_01_sfnt_off00006409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6409 19176 bytes
SHA-256: 8b6618cb9da32b8950bea342314c5466c468eabb6a3165886247cdabf7da6675

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