Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8edce9effa9571…

MALICIOUS

PDF

33.4 KB Created: 2021-06-28 15:16:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: dc9b0a400a8b8160f3baa9bd4e80fd45 SHA-1: 19db7174ad284cc13ad5777bcf9bf04b6c7d650a SHA-256: 8e8edce9effa9571dbc17909d53e98d5ed68a7d03bcb465b32300e2dbeedb95e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and text lures related to game cheats and free currency, strongly suggesting a phishing or malware distribution attempt. The presence of a visual download button and instructions for password-protected archives further indicate a malicious workflow designed to trick users into downloading a payload. The ML classifier also flagged this PDF as malicious with high confidence.

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.co/app/431946152/using-cheat-engine-6.6-on-roblox-apoc-game-hack
    • http://elibrary.smknesbu.sch.id/repository/hack-money-vehicle-simulator-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-free-robux-com_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/minecraft-games-free-to-play-online_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-download-android-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/como-recuperar-una-cuenta-de-roblox-hackeada_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-robux-genetator-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/what-happens-if-you-go-on-a-free-robux-website_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-roblox-on-youtube-on-your-phone_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-hack-cheat-engine_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/you-promised-my-son-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/tower-battles-hack-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-you-get-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-tool_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/hacked-roblox-account-username-and-password_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-cheat-engine-robux-hack-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-capes-for-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-spins-coin-master-blogspot_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-guest-shirt-free-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d59.bin
9057d9c384908cc2147484d7468c34cdedbc047ccdf3228b8f1cc7b9700f4a67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D59 21520 bytes
font_01_sfnt_off00005cc9.bin
2fc87594f5a7edf20c2c95c4276cf5187f9e58d9c52463946815bbebce9c7f3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC9 19284 bytes

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