Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d3c39ebe1968024…

MALICIOUS

PDF

38.2 KB Created: 2021-05-24 06:38:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f488305f0e337737e7c8fdce73b6df99 SHA-1: 304df144e1ed5ee987f977e3be3e78dc03bdec7c SHA-256: 2d3c39ebe1968024e08de8652e29e0df312d5ca9e972320e4c02d2a59b543234
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, instructing the user to click a link to access 'free TikTok accounts and passwords'. This link, 'https://netcdn.xyz/app/835599320/free-tiktok-accounts-and-passwords-game-hack', is identified as a malicious URI. The document body also contains multiple other URLs pointing to similar scam-like content, suggesting a phishing or social engineering attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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/835599320/free-tiktok-accounts-and-passwords-game-hack
    • https://esl.ipb.ac.id/images/free-robux-no-survey_GM431946152.pdf
    • https://esl.ipb.ac.id/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdf
    • https://esl.ipb.ac.id/images/coin-master-hack-no-verify_GM406889139.pdf
    • https://esl.ipb.ac.id/images/get-free-tiktok-followers-no-verification_GM835599320.pdf
    • https://esl.ipb.ac.id/images/coin-master-hack-tool-v1-9-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003919.bin
2d8e6e9f3a1640a2c193e148ef598231ef95e18ae4c7b7c9806cfa5219283bd6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3919 26092 bytes
font_01_sfnt_off000073fb.bin
bbd6b533d869a7a089323291600526adae2a42e90d5e0cf5c01053f7505e7d8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73FB 18316 bytes

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