Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b5de67c64a8d6c3…

MALICIOUS

PDF

36.7 KB Created: 2021-05-23 14:06:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: dca0d5e2ddece20c3bdc2195d53eeea0 SHA-1: a4e6001ccb2ccb26689d12791cee118e609cda55 SHA-256: 6b5de67c64a8d6c3d48cdd0fccb2dac0ee6044c58fb3391ebd2692469cdbd9f2
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure and an embedded URI pointing to a suspicious URL. The document body also contains text and links related to 'free Robux' and 'hacking accounts', suggesting a scam or phishing attempt. The presence of multiple URLs associated with similar lures indicates a campaign focused on tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/www-free-robux-game-hack
    • https://tanahlot.id/assets/CKImages/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/daily-spin_GM406889139.pdf
    • https://tanahlot.id/assets/CKImages/files/free-roblox-accounts-that-work_GM431946152.pdf
    • https://tanahlot.id/assets/CKImages/files/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003359.bin
1094ee76cbd0b5e8b18b595d6e4177df29a6ddf947128393049f302c88520709		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3359 26144 bytes
font_01_sfnt_off00006d9d.bin
3afa3067d1f3c9d8d4e5028784d7d2a7352a3b977a914758f486701e4d265e0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9D 18376 bytes

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