Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e5990d2d80f7f66…

MALICIOUS

PDF

35.4 KB Created: 2021-06-30 08:33:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: df66639375b3983a3ecc1aa4f63b0a22 SHA-1: 7c45e25ee8291c9bfbca25745ef2e44ef427a65e SHA-256: 8e5990d2d80f7f666146ba98d95f4ccf5d41ba5882eeb1e6f6b6f5bdce399fd7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

This PDF document employs a lure related to game cheats and hacks to entice users. It contains a call-to-action and instructs the user to interact with their clipboard, likely to paste commands into a shell for execution. The ML classifier strongly flagged this PDF as malicious, and it contains an external URI pointing to a potential payload download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/hack-roblox-game-ability-game-hack
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-robux-group_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-spin-link-for-coin-master_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-hack-roblox-heros-of-robloxia_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/coin-master-free-spins-link-facebook_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/your-cheating-on-your-roblox-girlfriend-meme_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-card-collection-in-coin-master_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-robux-hack-for-2021-mystic-plays_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-robux-with-no-survey_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/what-is-the-money-cheat-for-roblox_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/roblox-sexually-abused_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-coin-master-coins-and-spins_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-25-spins-coin-master-links_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/hack-roblox-admin-commands_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/easy-robux-com_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/roblox-hack-scripts-op_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-be-sans-in-roblox-for-free_GM431946152.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-coin-master-spins-2021_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/play-coin-master-for-free_GM406889139.pdf
    • http://www.shivintech.com/uploaded_files/userfiles/files/instagram-coin-master-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033c9.bin
9d648c83f19e1b98ab8cbe82b84ec80edf6d36037ff6ed1e7cea8a20821aa723
pdf-font-stream PDF embedded font (sfnt) at offset 0x33C9 22056 bytes
font_01_sfnt_off00006482.bin
4ab09b347d792eca68cd2ab894f8996315581565cb95fd28972e6d3334669c4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6482 19320 bytes