Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3472765c58334fd…

MALICIOUS

PDF

37.9 KB Created: 2021-05-20 20:23:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ba40853e647a704a068e9770e1f63c71 SHA-1: 6805120a8477ac8376f3694afac9e7f23e67767d SHA-256: a3472765c58334fd58c37b00f8a36a88f85c098b03d3a2fc54ea328ccd126c0a
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, directing users to click on embedded links. These links, such as 'https://netcdn.xyz/app/431946152/how-to-get-free-robux-on-iphone-game-hack', likely lead to a site designed to trick users into further malicious actions, such as downloading a second-stage payload. The document body and heuristics strongly suggest a social engineering attempt to obtain free Robux, a common lure for malware distribution.

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/431946152/how-to-get-free-robux-on-iphone-game-hack
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/get-free-robux-info_GM431946152.pdf
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdf
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/oprewards-com-earn_GM431946152.pdf
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-spin-link-hack_GM406889139.pdf
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/javascript-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003584.bin
a6ed3b5422a58367b21b371c7a449486a79f3f83e78a4d31fc4221ef3acf0da1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3584 26548 bytes
font_01_sfnt_off000071cc.bin
22426b865d680281cc4768d4f40ba725f59186fc510e45c7c95a1e6bea128c39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71CC 18624 bytes

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