Malicious PDF — malware analysis report

Static analysis result for SHA-256 3db00da355dc1a32…

MALICIOUS

PDF

48.9 KB Created: 2021-05-12 12:05:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a9bc6076bd330865a0ec8b55e0976aeb SHA-1: d0124349229daa51dd168ec9b38396a588f3087f SHA-256: 3db00da355dc1a3278cb04c80b47b9d0cfd386a5ca1c98c9da32fb9a659a883b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, suggesting it is designed to trick users into downloading malicious content. The presence of a heuristic indicating password-protected archive handoff further supports the malicious intent, likely to bypass security controls. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 https://netcdn.xyz/app/431946152/roblox-ftw-game-hack
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spin-daily-link_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-with-no-verification-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-arsenal-hacks-download_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/microsoft-roblox-rewards_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/hack-mod-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-real-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-no-password_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/minecraft-bedrock-client_GM479516143.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-generator-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-2021-without-human-verification_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-coin-master-account_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-apps-that-work_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-codes_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/actual-free-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-free-robux-youtube_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-spin-link-today-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/funbloxxyz-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c06.bin
8e95b9b745d80dc465bd5e67b53c0a29c8ac495c140dc4ab30c518b3d93c86c9		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C06 36276 bytes
font_01_sfnt_off00009d4e.bin
1d50de4617ba4833758eaeaefdb81b723ed2f26f16522b6b79df10ef9fbd4a9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D4E 18216 bytes

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