Malicious PDF — malware analysis report

Static analysis result for SHA-256 7508b475e2e0be1e…

MALICIOUS

PDF

24.8 KB Created: 2021-06-20 01:19:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d3acd0a3ef6d968d63a15cbb7b535a5f SHA-1: a1fb17f41949f20078f8668b72bd3f4c17daf0c5 SHA-256: 7508b475e2e0be1e8181c00e8b765661859f5a04c6cb923de26c2d12d46d7b2d
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-priority heuristic indicating it links to a 'free generator / game hack' redirector, specifically targeting users interested in Roblox. The embedded URL, http://netcdn.co/app/431946152/me-enfrente-a-un-hacker-de-roblox-game-hack, is the primary indicator of this lure. While no scripts were explicitly extracted, the nature of the lure suggests it's designed to lead the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 3

  • 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.
  • 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/me-enfrente-a-un-hacker-de-roblox-game-hack PDF link annotation
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pubg-uc-with-paypal_GM1330123889.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pubg-uc-with-jazz-cash_GM1330123889.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/game-robux-free_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/bee-game-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-ways-to-get-robux-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3124 22288 bytes
SHA-256: 24ac4d04cf78f251e4f2ac928117c734d1110f693eeda68eef2784157663f9d5

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