Malicious PDF — malware analysis report

Static analysis result for SHA-256 e575681da31c992a…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 22:12:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 38b3fc70046b78f76d148f83e1b377c4 SHA-1: e993f0129e41b6056d6c48e208eb4ceecc1d3d8b SHA-256: e575681da31c992adcf17e9e63d7f0415f2d73436307e353a1c8637081f506e4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action lure, suggesting it is designed to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple game-related lure URLs indicates a phishing or scam attempt. No scripts were extracted, but the overall structure points to a downloader or redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.tw/app/479516143/are-minecraft-realms-free-game-hack
    • http://library.thamrin.ac.id/repository/roblox-tracker_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/google-how-do-you-get-free-robux_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/coin-master-fun-free-spins_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/codes-to-get-free-robux_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/paginas-que-dan-robux-free_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/what-player-got-banned-for-using-free-models-roblox_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/free-spins-on-coin-master-game_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/adopt-me-roblox-hacked_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/robuxfree-con_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/coin-coin-master-hack_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/flood-escape-roblox-hack_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/is-windows-10-minecraft-free_GM479516143.pdf
    • http://library.thamrin.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/free-robux-no-password_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/1-million-free-robux-landon_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/roblox-army-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003087.bin
29a1c00819d73c37d58dd4ac8d6a134cf8060821cd0fb0c635dd580b72161eda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3087 21956 bytes
font_01_sfnt_off00006126.bin
d03ba9564428e384e5e3ced25d8b1013c57b3bb58065391049a684be5554abff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 18192 bytes

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