Malicious PDF — malware analysis report

Static analysis result for SHA-256 08833625024da5df…

MALICIOUS

PDF

36.2 KB Created: 2021-07-04 22:02:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0a0859b8277edaa596cb4346a3c24c03 SHA-1: e060dd845ab6d8ac17216247465f819a1322752d SHA-256: 08833625024da5df909f537358587aca4219113517732ffdfcd1f08af9da4c0a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for free in-game currency, directing users to a URL that likely hosts a malicious payload. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful content. The document body text explicitly mentions 'free robux' and 'password', reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-robux-that-only-needs-your-password-totally-game-hack
    • http://library.fisip.upnvj.ac.id/repository/is-minecraft-java-free_GM479516143.pdf
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdf
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-no-human-verification_GM406889139.pdf
    • http://library.fisip.upnvj.ac.id/repository/free-robux-hacker-us_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/robux-free-c_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/hack-to-send-gold-cards-on-coin-master_GM406889139.pdf
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-generator-tool_GM406889139.pdf
    • http://library.fisip.upnvj.ac.id/repository/how-to-hack-in-arsenal_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/how-to-try-roblox-accessoryes-for-free_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/free-tiktok-followers-no-survey_GM835599320.pdf
    • http://library.fisip.upnvj.ac.id/repository/can-you-get-robux-for-free-on-roblox_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-2021-android-apk_GM406889139.pdf
    • http://library.fisip.upnvj.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/comeent-hacker-roblox_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/free-wearable-wings-roblox_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/pokemon-go-free-pokeballs-2021_GM1094591345.pdf
    • http://library.fisip.upnvj.ac.id/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
    • http://library.fisip.upnvj.ac.id/repository/hack-de-coin-master_GM406889139.pdf
    • http://library.fisip.upnvj.ac.id/repository/claim-free-robux_GM431946152.pdf
    • http://library.fisip.upnvj.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000338e.bin
c505e540a3a86c948f1273be914c34ee0562d541b08922cf6fc81403052498f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x338E 22728 bytes
font_01_sfnt_off00006679.bin
b43e07e4a180992ed71e22594eed2be155cbda07c0b1019ec1d1b6bc0e1449b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6679 19708 bytes

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