Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07e7e4c5865b159…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 19:04:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9bbb40b51c90bf13da26a426b255aaaa SHA-1: c86a5e82134b3cbc96909065f96cb079652d3ac3 SHA-256: c07e7e4c5865b1592476e63bfc02d6b98520c0d3a39a99f8201860d593a2afff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1203 Exploitation for Client Execution

The PDF document contains lures related to obtaining Robux for Roblox, a common theme in scams. It explicitly instructs the user to copy and paste content into a command execution context, indicating an attempt to trick the user into running malicious commands. The ML classifier also flagged this PDF as malicious with high confidence.

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/how-to-get-100-000-robux-on-roblox-for-free-game-hack
    • http://perpustakaan.stikeshamzar.ac.id/repository/coin-master-tool-hack_GM406889139.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/command-hacks-for-roblox_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/how-to-get-hair-for-free-on-roblox_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/free-roblox-intros_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/name-that-youtuber-roblox-cheats_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/javascript-free-robux_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/how-to-hack-on-roblox-apocalypse-rising-2021-august_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/80-free-spins-coin-master_GM406889139.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/www-roblox-hack-free-robux-deutsch_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/coin-master-link_GM406889139.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/rewards-robux_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/roblox-fly-hack-pastebin_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/i-got-hacked-on-roblox_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/roblox-free-weapons_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/coin-master-free-spin-today_GM406889139.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/roblox-free-clothes-hack-on-phone_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/robux-free-2021_GM431946152.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/free-minecraft-gift-card_GM479516143.pdf
    • http://perpustakaan.stikeshamzar.ac.id/repository/coin-master-hack-iosgods_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003069.bin
a53fc50c12aa495f06d4e554276a5232506b8a1889e44e2f4eb8c4e435525a5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3069 21424 bytes
font_01_sfnt_off00005f1e.bin
93b69ebfceb25987b6a20507482b950d8b70f5b7060d60dc61a87db3659785fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1E 19336 bytes

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