Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7e9df66470dcdbf…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 04:55:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6c1ca5514c68d79aa9719cc5da2c6314 SHA-1: ab6adaffddbe5a267475d94975b6c861be23f361 SHA-256: f7e9df66470dcdbfa5e455f0469a90b90e012f52173a2ae9758283c9443b0bab
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game-related items, specifically referencing Roblox and Coin Master hacks. It includes a high-confidence heuristic firing for a game hack redirector pointing to http://netcdn.tw/app/431946152/free-roblox-gift-card-codes-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for JavaScript execution or redirection to a malicious site designed to exploit user interest in game cheats.

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.tw/app/431946152/free-roblox-gift-card-codes-game-hack PDF link annotation
    • https://planetzoe.hr/files/god-of-elements-roblox-element-hack_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/roblox-red-hoodie-free-now_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/2021how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/free-robux-easy-just-username-and-then-get-robux_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-put-in-hack-on-any-roblox-game_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.planetzoe.hr/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/free-robux-ad_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_off0000311f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311F 22528 bytes
SHA-256: eafb014f81565b088e6adfcd16e0fc6474d8711889c1d9e06874cace6c5df3dc
font_01_sfnt_off0000636d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636D 19048 bytes
SHA-256: 7d328b4ff7aebfbc9819c9e51d9566e0005dc59142d74411f46393e6d3b0cbb0

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