Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25c8a5b731adbeb…

MALICIOUS

PDF

42.2 KB Created: 2021-05-16 15:32:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8d7e60f95bbc39b8a2339fc0749d1dd4 SHA-1: 56c41b31f1097d8f51dda41600fd64ec018c1992 SHA-256: d25c8a5b731adbeb3b2d7f31ac3a13bbfc3012008c5b89f37e5434ee317aa521
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a malicious link. This link, 'https://netcdn.xyz/app/406889139/coin-master-free-spin-codes-game-hack', likely leads to a download or further redirection. The presence of numerous other suspicious URLs further supports the malicious intent of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/406889139/coin-master-free-spin-codes-game-hack
    • http://auto-mankel.de/images/free-robux-website_GM431946152.pdf
    • http://auto-mankel.de/images/what-is-a-robux_GM431946152.pdf
    • http://auto-mankel.de/images/coin-master-hack-programmers_GM406889139.pdf
    • http://auto-mankel.de/images/can-you-give-me-free-robux_GM431946152.pdf
    • http://auto-mankel.de/images/free-coin-master-gifts_GM406889139.pdf
    • http://auto-mankel.de/images/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • http://auto-mankel.de/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://auto-mankel.de/images/spin-coin_GM406889139.pdf
    • http://auto-mankel.de/images/coin-master-strategy_GM406889139.pdf
    • http://auto-mankel.de/images/google-roblox-games_GM431946152.pdf
    • http://auto-mankel.de/images/get-me-robux_GM431946152.pdf
    • http://auto-mankel.de/images/easy-how-to-get-free-robux_GM431946152.pdf
    • http://auto-mankel.de/images/coin-master-free-cards_GM406889139.pdf
    • http://auto-mankel.de/images/how-to-get-free-robux-on-computer_GM431946152.pdf
    • http://auto-mankel.de/images/free-spin-coin-master-2021_GM406889139.pdf
    • http://auto-mankel.de/images/coin-master-online-hack-2021_GM406889139.pdf
    • http://auto-mankel.de/images/free-robux-pins_GM431946152.pdf
    • http://auto-mankel.de/images/roblox-free-robux-generator_GM431946152.pdf
    • http://auto-mankel.de/images/300-free-spins-coin-master_GM406889139.pdf
    • http://auto-mankel.de/images/how-to-hack-roblox-passwords_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004902.bin
2a3ece1c0d084392929ce7a31ce4b01f2c45f4d3629835877a326540a22eaa3c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4902 25476 bytes
font_01_sfnt_off0000834f.bin
6c6954b9f81c735a5c4580de4c42457a99792272849cec4d30b191d18cdb5601		 pdf-font-stream PDF embedded font (sfnt) at offset 0x834F 18060 bytes

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