Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5360cb9ab7fc011…

MALICIOUS

PDF

44.7 KB Created: 2021-06-04 06:17:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e012c07e2307f6cc775c2d100411aef5 SHA-1: 096ca3e0e10ce03b58ed4ee1f2179aa9ec80b18f SHA-256: e5360cb9ab7fc0115b7c5643f8abf708612c7c69bf5aa5b691ca9b8c9283cb80
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a visual call-to-action, suggesting a phishing or scam attempt to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports this assessment. No scripts were extracted, but the overall pattern indicates a lure for potentially harmful downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.online/app/431946152/free-animations-on-roblox-game-hack
    • http://www.elibrary.perludem.org/repository/coinmaster-free-spins-link_GM406889139.pdf
    • http://www.elibrary.perludem.org/repository/roblox-hacking-website_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/robux-offer-wall_GM431946152.pdf
    • http://elibrary.perludem.org/repository/free-rare-cards-for-coin-master_GM406889139.pdf
    • http://www.elibrary.perludem.org/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/hackear-coin-master-sin-verificacion_GM406889139.pdf
    • http://elibrary.perludem.org/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdf
    • http://elibrary.perludem.org//repository/jailbreak-script_GM431946152.pdf
    • http://elibrary.perludem.org/repository/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://elibrary.perludem.org/repository/coin-master-free-spin-app-reviews_GM406889139.pdf
    • http://elibrary.perludem.org//repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdf
    • http://elibrary.perludem.org//repository/send-me-500-2021-spins_GM406889139.pdf
    • http://elibrary.perludem.org//repository/coin-master-gift-link_GM406889139.pdf
    • http://www.elibrary.perludem.org/repository/free-robux-earn_GM431946152.pdf
    • http://elibrary.perludem.org//repository/hacks-for-roblox-prison-life_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/best-minecraft-hacked-client_GM479516143.pdf
    • http://www.elibrary.perludem.org/repository/cute-free-stuff-on-roblox_GM431946152.pdf
    • http://www.elibrary.perludem.org/repository/how-to-hack-robux_GM431946152.pdf
    • http://elibrary.perludem.org/repository/coin-master-free-spin-link-twitter_GM406889139.pdf
    • http://www.elibrary.perludem.org/repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000512d.bin
a45cc674538d9d2081726765558187e5c75ae8d740176fbee85cadd3ab00a5f9		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x512D 25028 bytes
font_01_sfnt_off00008afc.bin
5c05f7b30fa88bc23b709f1ffa4604650f5d98687d778cea0c1cdcfb07c45d23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFC 18660 bytes

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