Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc2a4ce4c2b1adb…

MALICIOUS

PDF

44.1 KB Created: 2021-06-07 12:17:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a68f1d609959a62e90d6aba4d44cd6c1 SHA-1: 8b7e7b176369cd1b178d168f64c599797917075b SHA-256: 5cc2a4ce4c2b1adba40a27ed41a7dce2f4eb24158639d314e49c2c623e121474
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into clicking embedded links. These links, such as 'https://netcdn.tw/app/431946152/how-to-hack-roblox-kazok-game-hack', likely lead to malicious downloads or further phishing attempts. The document's content and heuristics strongly suggest a social engineering attack aimed at users seeking game cheats or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/how-to-hack-roblox-kazok-game-hack PDF link annotation
    • http://dieter-sauter.com/images/robux-robux_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/roblox-hack-robux-cheat-engine-64_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://dieter-sauter.com/images/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004cbf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CBF 26508 bytes
SHA-256: 3b7c98fb90f52885722b75ed9109a622a9cb3dbc434e3d06870e1871c23dbd58
font_01_sfnt_off00008919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8919 18428 bytes
SHA-256: 6a077a7da72b06b0e31b57a1fd924510ce30c89325d54ba489ed2ecf8c036f30

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