Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cf3b74c2ab86547…

MALICIOUS

PDF

42.4 KB Created: 2021-05-22 16:36:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 94417bde0422d448cfab17ff285a6df1 SHA-1: 65f2c60cd938ef1515989b4699853da2fdaf9435 SHA-256: 5cf3b74c2ab86547fb0eb0f380dcac7cd381cfe07ab29ffef3256361ac722698
82 Risk Score

Malware Insights

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

The PDF document displays a fake CAPTCHA, a common social engineering tactic to trick users into interacting with malicious content. It contains multiple embedded URLs, one of which, 'https://netcdn.xyz/app/431946152/how-to-hack-a-roblox-account-easy-game-hack', is likely a lure for a malicious download or exploit. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9506

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/431946152/how-to-hack-a-roblox-account-easy-game-hack
    • http://paro.net.ua/images/how-do-you-get-roblox-for-free_GM431946152.pdf
    • http://paro.net.ua/images/get-robux-com_GM431946152.pdf
    • http://paro.net.ua/images/is-minecraft-earth-free_GM479516143.pdf
    • http://paro.net.ua/images/robux-adder_GM431946152.pdf
    • http://paro.net.ua/images/roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003435.bin
05a3089467077a0e80990e92c44746b6588965e877073727c219e7f5d6e28d1d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3435 36704 bytes
font_01_sfnt_off00008331.bin
f0aa2a8f008262e8aa636f08cdffff7c9568ae6e0bf5f389be1472b9a6879674		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8331 18772 bytes

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