Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5b8783596a2bc24…

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 09:43:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1d98e06783712184c9b9fa1a878e7e7a SHA-1: a2933a96f7caa42dc558d302f7e28290b9f6a8e3 SHA-256: c5b8783596a2bc241ec54808171250b37182de20d78cc4397c3784122432bea1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains numerous embedded URLs and a primary external URI pointing to websites that promise game hacks and free currency. The ML classifier strongly flagged this PDF as malicious, and the presence of these links suggests a phishing or scam attempt to redirect users to potentially harmful sites. No scripts were extracted, but the document's content and embedded links indicate a lure for users interested in in-game exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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/how-to-hack-to-get-robux-game-hack
    • http://digilibfisip.unla.ac.id/repository/free-hacks-for-coin-master_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/free-2021-robux_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/minecraft-for-free-apk_GM479516143.pdf
    • http://digilibfisip.unla.ac.id/repository/coin-master-club-hack_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-apk-iphone_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/can-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/minecraft-114-4-download_GM479516143.pdf
    • http://digilibfisip.unla.ac.id/repository/roblox-how-to-get-free-shirts_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/hack-coin-master-using-pc_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/get-me-free-robux_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/buxblast-com-robux_GM431946152.pdf
    • http://digilibfisip.unla.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdf
    • http://digilibfisip.unla.ac.id/repository/free-roblox-boy-hair_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005226.bin
2f9a5ab67bc11327875abc266d0b1017aa9a368dd0c30a5fef3583e4f1536cdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5226 25104 bytes
font_01_sfnt_off00008ad1.bin
5879c26d32e0ab4faed3d680263fa74cc266a38abde1d6ee4d56808f786447fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD1 2908 bytes
font_02_sfnt_off000094ca.bin
e2a97b64806b22db336191728b408e5b7179700d4ee5fd3b4b30addea2706a3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94CA 18516 bytes

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