Malicious PDF — malware analysis report

Static analysis result for SHA-256 614699aef962f766…

MALICIOUS

PDF

41.3 KB Created: 2021-05-21 06:35:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 78b37b4ca6397fb1cea3c8432cc185af SHA-1: df1e3c69b08d7c565281ed59df419ec676a24f7e SHA-256: 614699aef962f7666f925637c2cd00ecd8bacd121a83cd9f6138c817ff90b52c
82 Risk Score

Malware Insights

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

The PDF document presents a fake CAPTCHA or human verification prompt to trick the user into clicking a link. This link, such as 'https://netcdn.xyz/app/431946152/how-to-get-free-robux-2021-game-hack', likely leads to a second-stage payload or phishing site. The document's content and embedded URLs suggest a lure for obtaining in-game currency, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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-2021-game-hack
    • http://stpc.it/images/coin-master-free-spin-and-coins-links_GM406889139.pdf
    • http://stpc.it/images/free-robux-hack_GM431946152.pdf
    • http://stpc.it/images/coin-master-hack-android-no-root_GM406889139.pdf
    • http://stpc.it/images/free-robux-giveaway_GM431946152.pdf
    • http://stpc.it/images/free-robux-without-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003652.bin
5bc634476f4757cb1f6a157b4e53ccce9fe3bc9dc524d5c0bc41d95571018d38		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3652 31284 bytes
font_01_sfnt_off00007f53.bin
662354714a7c4aa127b8bd681013e9d5d113fbfc5a2f5afb2d34764175bb04a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F53 18684 bytes

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