Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdd8fa087b3596db…

MALICIOUS

PDF

39.0 KB Created: 2021-05-20 23:55:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8b40dada61d4573732268bb8aec06c22 SHA-1: 285eb8e87655257ab8adaa531ebff4721c803730 SHA-256: bdd8fa087b3596dbd1ccbc364dedf4b1a7f34155dded2b329a377f3d731345c2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a fake CAPTCHA lure, encouraging users to click on embedded links. One of the extracted URLs, 'https://netcdn.xyz/app/431946152/cute-free-roblox-outfits-game-hack', is likely a landing page for a malicious download or exploit. The presence of multiple PDF links suggests a phishing or social engineering attempt to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/cute-free-roblox-outfits-game-hack
    • https://asiavisiontreks.com/userfiles/files/free-spins-coin-master-no-human-verification_GM406889139.pdf
    • https://asiavisiontreks.com/userfiles/files/fbchampion-com_GM406889139.pdf
    • https://asiavisiontreks.com/userfiles/files/rbx-place-free-robux_GM431946152.pdf
    • https://asiavisiontreks.com/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdf
    • https://asiavisiontreks.com/userfiles/files/free-daily-coin-master-coins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030f0.bin
f4a2d345013aa84415be087d843d5b6501ef19ff7e37ac173a9441940e641e43		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30F0 26440 bytes
font_01_sfnt_off00006d0f.bin
106de1d187d148d03f5c34a802444a7e62d93662ddf359d17cd55770c6c16081		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0F 2880 bytes
font_02_sfnt_off00007700.bin
2199fd6d62bdff63a90b18f1783fe44650e4aecd573f3309c05a38fa35b4e6eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7700 18312 bytes

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