Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd0f75ae005020d0…

MALICIOUS

PDF

39.5 KB Created: 2021-04-27 08:37:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 03507474b70a401c8201cd47f41ca207 SHA-1: 8c51f4ab84c2ceab282906233b599a83a489ca00 SHA-256: dd0f75ae005020d027f44581d9a45164c2ca370c820fbc16a6f04a4d916165d9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector. This lure is designed to trick users into clicking the malicious URL, likely leading to further malware downloads or phishing attempts. The ML classifier also strongly flagged this PDF as malicious.

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/hack-meep-city-roblox-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/how-to-use-winrar-for-hacks-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/c7-roblox-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-easy-and-fast-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-all-games.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/escape-school-obby-roblox-cheats.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-wall-hacks.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/como-hackear-juegos-de-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-body-part-resize-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-face-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-hair-roblox-hack.pdfIn PDF document text
    • https://freerobux.cyouIn 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_off00003f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F76 24488 bytes
SHA-256: b6ed5f9fdc6e5c05ec16c7a37842ab139ab3abe5b404122bed142881616fa815
font_01_sfnt_off00007693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7693 18956 bytes
SHA-256: bfee706c4e0ce2435bce50e7d2105110251d0f27ce8be42dc13b41f4fa2e0283

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