Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64f2503fa664735…

MALICIOUS

PDF

36.4 KB Created: 2021-05-21 13:42:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 419fd8dc2546e7a28d6cfcbb4adad968 SHA-1: afc5891b470c78874bb246c0fd85cd381c84db01 SHA-256: f64f2503fa664735ef6b2e65fb2d5a0e8f365a6d0297dace7932850c188454ef
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA and a "CLICK HERE TO ACCESS COIN MASTER GENERATOR" call-to-action, aiming to trick the user into clicking a malicious link. This link, identified as https://netcdn.xyz/app/406889139/coin-master-free-spin-ml-game-hack, is likely intended to deliver a second-stage payload or lead to further phishing attempts. The presence of multiple suspicious URLs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-ml-game-hack
    • http://santeh-40.ru/images/robuxglobalcom-no-verification_GM431946152.pdf
    • http://santeh-40.ru/images/how-to-get-minecraft-windows-10-for-free_GM479516143.pdf
    • http://santeh-40.ru/images/roblox-lawsuit_GM431946152.pdf
    • http://santeh-40.ru/images/coin-master-game-hack-app-download_GM406889139.pdf
    • http://santeh-40.ru/images/free-minecraft-java-edition-codes_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034b7.bin
02879eabb4e09f2ae015228e7624c4b1b9e67d048cbaecb755d07057e96389cc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34B7 25408 bytes
font_01_sfnt_off00006e1d.bin
444b71fec9169bc90a734dd5dd223b39b45661ce510f738c863c1de9395466a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1D 17960 bytes

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