Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a69dc0e3d8d369f…

MALICIOUS

PDF

31.4 KB Created: 2021-07-20 00:36:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 891fcd0c283450b7198fb0d812b3d1a8 SHA-1: 2a6b118c444821d3c88fa473e02d0d07a2cbdd81 SHA-256: 5a69dc0e3d8d369fcc055de6c6abf99aaf35c6a31d5895e09eaafee1ca8b8201
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document presents a fake CAPTCHA or human verification prompt to trick the user into clicking a link. This link, http://netcdn.tw/app/479516143/is-minecraft-java-edition-free-game-hack, likely leads to a malicious site designed to download further malware or conduct phishing. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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 http://netcdn.tw/app/479516143/is-minecraft-java-edition-free-game-hack
    • https://cluster-consulting.com/images/coin-master-claim-free-spins_GM406889139.pdf
    • https://cluster-consulting.com/images/is-minecraft-free-on-pc_GM479516143.pdf
    • https://cluster-consulting.com/images/coin-master-free-spins-link-download_GM406889139.pdf
    • https://cluster-consulting.com/images/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • https://cluster-consulting.com/images/free-coin-master-coins-and-spins_GM406889139.pdf
    • https://cluster-consulting.com/images/get-free-followers-on-tiktok_GM835599320.pdf
    • https://cluster-consulting.com/images/how-to-get-free-tiktok-likes_GM835599320.pdf
    • https://cluster-consulting.com/images/free-minecraft-games-for-kids_GM479516143.pdf
    • https://cluster-consulting.com/images/tiktok-viewer-free_GM835599320.pdf
    • https://cluster-consulting.com/images/free-minecraft-account_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027e6.bin
4b0fb0b9ea88154e15047cc45148030cc9ead322f4c025cf7bb361c7d7167c11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E6 22244 bytes
font_01_sfnt_off00005908.bin
781be49a7702cf06049b723b9768b43598e981f21f4500b8f56603e8064b4811		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5908 18164 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.