Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce3a7faa7ed3c1f…

MALICIOUS

PDF

44.1 KB Created: 2021-05-19 09:30:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4f6ec095185b8d8ec9d94a74e4da5c91 SHA-1: 1c2f46a99723846b428e4ce0a5d903713463c21b SHA-256: 6ce3a7faa7ed3c1f32388122674d8f6df945e4020866442e91377e1cb4bc9efa
82 Risk Score

Malware Insights

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

The sample was flagged by an ML classifier and contains a fake CAPTCHA lure, indicating a malicious intent to trick the user. An external URI pointing to 'netcdn.xyz' was extracted, suggesting the document is designed to redirect users to a potentially malicious site. The document body also contains the same URL, reinforcing the phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/431946152/free-robux-without-verification-game-hack
    • http://www.herricht.at/images/minecraft-hacked-client-bedrock_GM479516143.pdf
    • http://www.herricht.at/images/free-promo-codes-roblox_GM431946152.pdf
    • http://www.herricht.at/images/coin-master-100-spin-hack_GM406889139.pdf
    • http://www.herricht.at/images/best-free-robux-sites_GM431946152.pdf
    • http://www.herricht.at/images/roblox-jailbreak-hack-download_GM431946152.pdf
    • http://www.herricht.at/images/claim-free-robux-button_GM431946152.pdf
    • http://www.herricht.at/images/minecraft-world-free-download_GM479516143.pdf
    • http://www.herricht.at/images/coin-master-free-spins-link-without-human-verification_GM406889139.pdf
    • http://www.herricht.at/images/free-spins-from-coin-master_GM406889139.pdf
    • http://www.herricht.at/images/coin-master-hack-355_GM406889139.pdf
    • http://www.herricht.at/images/i-want-robux_GM431946152.pdf
    • http://www.herricht.at/images/coin-master-hacks-xyz_GM406889139.pdf
    • http://www.herricht.at/images/free-robux-no-apps_GM431946152.pdf
    • http://www.herricht.at/images/wurst-client_GM479516143.pdf
    • http://www.herricht.at/images/minecraft-gun-games-free_GM479516143.pdf
    • http://www.herricht.at/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://www.herricht.at/images/gameoffice-net-hack-coin-master_GM406889139.pdf
    • http://www.herricht.at/images/coin-master-hack-2021-iphone_GM406889139.pdf
    • http://www.herricht.at/images/robux-com-roblox_GM431946152.pdf
    • http://www.herricht.at/images/coin-master-hack-with-facebook-login_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047e7.bin
1cbbf0dfafde89636dc2de8e04f2e6ec170d7e3c6969712e63cbe8338e73377b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47E7 26664 bytes
font_01_sfnt_off0000849f.bin
673c2a2c8ff5cf952937f60c224d55213cb349f783505b565b933a2df5a1264b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x849F 20128 bytes

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