Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4e3ea274589f3b8…

MALICIOUS

PDF

45.2 KB Created: 2021-06-01 07:25:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f6b4e5636c78cb08d0a7d37b7a445189 SHA-1: ed39644734556348a8630f17fa4a938d09786bf1 SHA-256: b4e3ea274589f3b842e67452d0191c9bc55adfe999a34144dc60803eb776b324
82 Risk Score

Malware Insights

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

The document uses a social engineering lure, presenting itself as a download for game hacks, and includes a visual call-to-action button. It contains multiple embedded URLs pointing to potentially malicious content, suggesting it's designed to trick users into downloading further malware or engaging in credential theft. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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 https://netcdn.xyz/app/431946152/descargar-hack-de-roblox-robux-game-hack
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/robux-matchcomfree-robux_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-how-to-hack-in-your-game-hack-gui_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-vehicle-speed-hack-script_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-catalog-hacks_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-roblox-hack_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/hack-for-roblox-jailbreak-downloads_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-not-fake_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-high-school-how-to-fly-for-free_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-multiplayer-free_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-skins-in-minecraft_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-roblox-account-cookies_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-free-play-no-download_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-building-hacks_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/i-think-someone-hacked-into-my-roblox-account_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-roblox-6-pack_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-real-roblox-robux-genereator_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/dbz-rage-roblox-hack_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/cheat-engine-fly-roblox_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-roblox-gg_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005349.bin
ac400fcf9ffa5f3b65cede48eefaf755816e577c0c9b369373bcdd0a67bc4df7
pdf-font-stream PDF embedded font (sfnt) at offset 0x5349 24948 bytes
font_01_sfnt_off00008c69.bin
315afa69a7e8bcd495a18dc785e829c57329687f118b7732ed81d0bb53ca8dbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C69 18776 bytes