Malicious PDF — malware analysis report

Static analysis result for SHA-256 d787f4043847918d…

MALICIOUS

PDF

35.7 KB Created: 2021-06-26 04:16:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4ca3381bccb120df7915f702732e5968 SHA-1: e235201f84178220f35efd94c72ce921e2676382 SHA-256: d787f4043847918d2fd0d131b7174970224676799caf1266d9d4d1a3d8d58860
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a URL that promises 'free generator / game hack'. The document body and embedded URLs reinforce this theme, suggesting the primary goal is to trick users into visiting a malicious site. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/hack-and-glitches-for-roblox-phantom-forces-game-hack PDF link annotation
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-granny-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hack-para-obtener-robux-gratis_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/los-mejores-hacks-nuevo-en-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-speedhack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/minecraft-xbox-free_GM479516143.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-sitecom_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/cheat-on-roblox-ghost_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-om-nom-simulator-hack_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-tiktok-like_GM835599320.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-hack-any-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-no-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-roblox-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hacks-para-roblox-2021-descargar_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/weapon-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hack-roblox-counter-blox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-hack-2021-july_GM431946152.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_off000032ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32BA 22572 bytes
SHA-256: 4805b861d67a76fa06ef76b27e206ee7ab8cc7e6aa3e7276a079092427959e92
font_01_sfnt_off000064b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B3 19796 bytes
SHA-256: 56f9755f4a14fce1b9665453fdf637534755084dfab20b655c39c77ccd03d952