Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc4b4ca76db92ea…

MALICIOUS

PDF

45.2 KB Created: 2021-06-11 10:54:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ae58e12b17c2dcf92a15be691a6426f2 SHA-1: 00a8fe9d3ba81ca9c1427a36599576c630dd5a8f SHA-256: 9cc4b4ca76db92ea45ab04bd5ee6b4e8de7399d52741245124980ec98bea2ea7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a heuristic firing for a payment redirection lure, suggesting a phishing or scam attempt. The presence of a download button lure and the ML classifier's high confidence further support this. The document's content, though garbled, appears to be a lure for game-related hacks or currency, likely leading to a malicious download or phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.tw/app/431946152/roblox-how-to-hack-into-gallantgaming-accounty-game-hack
    • http://vetmed.fkh.unair.ac.id/repository/how-to-sell-items-for-robux-for-free-roblox_GM431946152.pdf
    • http://vetmed.fkh.unair.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdf
    • http://vetmed.fkh.unair.ac.id/repository/robux-free-genorator-no-survey-or-humaan-verifaction_GM431946152.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/free-that-spells-free-roblox-id_GM431946152.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdf
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-hack-download_GM406889139.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/give-free-robux_GM431946152.pdf
    • http://vetmed.fkh.unair.ac.id/repository/download-minecraft-free-hiapphere_GM479516143.pdf
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdf
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-hack-tool-v1-9-apk_GM406889139.pdf
    • http://vetmed.fkh.unair.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://vetmed.fkh.unair.ac.id/repository/robux-fun-hack_GM431946152.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-apk-hack-mod-download_GM406889139.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/irobux-com-redeem_GM431946152.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/which-pokemon-go-free-server_GM1094591345.pdf
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-cheat-deutsch_GM406889139.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-hacks-reddit_GM406889139.pdf
    • http://vetmed.fkh.unair.ac.id/repository/roblox-btools-script-free_GM431946152.pdf
    • http://www.vetmed.fkh.unair.ac.id/repository/get-robux-for-free-2021_GM431946152.pdf
    • http://vetmed.fkh.unair.ac.id/repository/roblox-script-hacks_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005134.bin
fc88d24aa9f9168265e24943787dcc44166c5f60bb177ae2a079ff76d1c5f9ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5134 25184 bytes
font_01_sfnt_off00008abb.bin
fe78d930c9f5a201508010d163b156ba1616da4c4c329c737e67388d03145aa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABB 19436 bytes

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