Malicious PDF — malware analysis report

Static analysis result for SHA-256 ede3468afda1758b…

MALICIOUS

PDF

34.4 KB Created: 2021-07-02 07:49:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8421b59e0a757b926cd8b8f0a8a6951f SHA-1: ab46c7627b086cd7dcadb50ffcd03b0d2dea542f SHA-256: ede3468afda1758b878b7cb50ff0b8d36deac845c0ef2fd7328e9919afe3631a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and extracted URLs reinforce this lure, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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/noclip-sin-hacks-roblox-game-hack PDF link annotation
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-get-free-stuff-on-roblox-high-school_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/triga-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/roblox-hack-menu-jailbreak-2021-abril_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/all-of-the-free-stuff-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/cheat-lumber-tycoon-2-roblox-rain_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/cute-outfits-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/robuxcase-for-free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/overblox-scipt-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/real-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/roblox-free-wiki-item_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-change-your-roblox-username-for-free_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_off00003128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3128 21944 bytes
SHA-256: d7b7d07d3d45365e98ba5d43c4becb5bd2f6095eb83e2f0c97a2367376100b8e
font_01_sfnt_off0000618e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618E 18952 bytes
SHA-256: 77382edd6b033c847fde5ce262c1245713d6d187fe4228bbd3fcc612e1e49551

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