Malicious PDF — malware analysis report

Static analysis result for SHA-256 4617f47c215d8e43…

MALICIOUS

PDF

42.0 KB Created: 2021-05-16 09:17:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ae4b8e80a3a50931b7b459d811388f0a SHA-1: bd7d2e3099afd7ef9b152963f5ea4b9d6f295135 SHA-256: 4617f47c215d8e4331ff1906e1b39b157cd3895b8425892f44243a6ad0944182
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with malicious links. The embedded URLs, such as https://netcdn.xyz/app/406889139/pig-master-coin-master-free-spin-game-hack, likely lead to further malicious content or scams. The ML classifier also flagged this PDF as malicious with high confidence.

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/pig-master-coin-master-free-spin-game-hack
    • http://playmoorecello.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://playmoorecello.com/images/coin-master-hack-apk-33-download_GM406889139.pdf
    • http://playmoorecello.com/images/moon-active-games_GM406889139.pdf
    • http://playmoorecello.com/images/coin-master-attack-hack_GM406889139.pdf
    • http://playmoorecello.com/images/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://playmoorecello.com/images/free-100-robux_GM431946152.pdf
    • http://playmoorecello.com/images/roblox-zone-free-robux_GM431946152.pdf
    • http://playmoorecello.com/images/coin-master-free-blogspot_GM406889139.pdf
    • http://playmoorecello.com/images/coin-master-hack-apk-35-11_GM406889139.pdf
    • http://playmoorecello.com/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://playmoorecello.com/images/free-robux-generator_GM431946152.pdf
    • http://playmoorecello.com/images/how-do-u-hack-roblox_GM431946152.pdf
    • http://playmoorecello.com/images/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • http://playmoorecello.com/images/free-robux-websites-no-human-verification_GM431946152.pdf
    • http://playmoorecello.com/images/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://playmoorecello.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdf
    • http://playmoorecello.com/images/free-robux-on-ipad_GM431946152.pdf
    • http://playmoorecello.com/images/how-to-hack-coin-master-2021_GM406889139.pdf
    • http://playmoorecello.com/images/free-25-spins-coin-master-links_GM406889139.pdf
    • http://playmoorecello.com/images/coin-master-free-spins-and-coins-daily-links_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004980.bin
fe42f7315af704a210890057eec5ede7e9d766b007b2618159d479e4cf294724		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4980 24580 bytes
font_01_sfnt_off000081a5.bin
c0a64c35313388beafce2145b76a0bf40d6659a82da461cbcb21248082e95923		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81A5 18328 bytes

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