Malicious PDF — malware analysis report

Static analysis result for SHA-256 2398f6ffc2791106…

MALICIOUS

PDF

36.3 KB Created: 2021-05-23 01:08:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e275269132c922f1bbd020796830d4d7 SHA-1: 9f40a6433be162efda639d863cd99b9924692207 SHA-256: 2398f6ffc2791106fc0bc47934fccca43313c3ca3587334d7ae146dba1970bf5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'free Minecraft Hosting' and game hacks to entice users to click on embedded links. The primary malicious link redirects to a URL hosted on 'netcdn.xyz', which is flagged as a high-risk indicator. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest an attempt to redirect the user to a potentially malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/479516143/free-minecraft-hosting-game-hack PDF link annotation
    • http://ledtherapysystems.com/images/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://ledtherapysystems.com/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://ledtherapysystems.com/images/wurst-commands_GM479516143.pdfIn PDF document text
    • http://ledtherapysystems.com/images/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://ledtherapysystems.com/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3522 24548 bytes
SHA-256: 9c3d2132bbc2878b3fe0dfef401f4960a7fc7c4f781286c79d816906dcc63769
font_01_sfnt_off00006d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D85 17996 bytes
SHA-256: bf6ae4c6721fa3eadf2b386a9cfec38fcd2e671f0767c49619a657aa344fd652

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