Malicious PDF — malware analysis report

Static analysis result for SHA-256 f502071447ddeb52…

MALICIOUS

PDF

40.3 KB Created: 2021-05-21 05:12:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dc9a35408ed90ed57d86bc8fe060bc60 SHA-1: ab30e9cf8840887f2fbe45c50fb7f736291fbbdb SHA-256: f502071447ddeb52455f1578d1f391e22d02401850339eda4e9f5c63ecee3aa7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and text that lure users with promises of game hacks and free generators, specifically mentioning Roblox. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-to-change-roblox-name-for-free-game-hack, which is likely used to deliver a secondary payload or redirect to a phishing site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/431946152/how-to-change-roblox-name-for-free-game-hack PDF link annotation
    • http://paro.net.ua/images/tiktok-free-package-dialog_GM835599320.pdfIn PDF document text
    • http://paro.net.ua/images/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://paro.net.ua/images/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://paro.net.ua/images/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://paro.net.ua/images/pokemon-go-free-mew_GM1094591345.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_off00003319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3319 30856 bytes
SHA-256: 471e6ef248f6464ca1ea81ec3615bf1d25727236d0d76fba09ab02afa8a56969
font_01_sfnt_off00007a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6D 19056 bytes
SHA-256: 615cebba423b1c03ae8308d5afe847d6fc39558f9726a846a054a1198e945902

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