Malicious PDF — malware analysis report

Static analysis result for SHA-256 54e00fe3badd5f5d…

MALICIOUS

PDF

41.3 KB Created: 2021-04-25 09:43:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4f7dd3d9473985d56ecffa8568dd7a9e SHA-1: 8b5f1bc4265f99f2a6caea2217c3d04eed7b1eb6 SHA-256: 54e00fe3badd5f5d22c11dbe6b6d3674532819588e2fc7368063a9e0ffe99b05
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing indicating it links to a "free generator / game hack" lure. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-gucci-roblox-game-hack. While no scripts were extracted, the document's structure and embedded links suggest a social engineering tactic to redirect users to potentially malicious content, likely as a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/free-gucci-roblox-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/good-roblox-games-about-cities-for-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-free-ninja-animation.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-brighton-and-hove-buses-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-bubble-gum-sim-best-pet-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-cheat-codes-for-elemental-war.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hack-week-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-on-roblox-3-simple-steps-youtube.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-mad-city-hack-client.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-no-hacks-roblox-approved.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-download-roblox-mac.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
stream_003_off0000434c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x434C 26368 bytes
SHA-256: fe35abe003abcc748a37f66bedb54ca9935c7002504f37790ae2a1553e48a095
font_01_sfnt_off00008040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8040 18208 bytes
SHA-256: fee1a388f8c272b23a545c7ad97c304d53e99ec7aae668966c065ca590e64763