PDF static analysis report

Static analysis result for SHA-256 b10cd4c60d89b6fa…

SUSPICIOUS

PDF

39.2 KB Created: 2021-04-29 07:39:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 26feee7a819f33dc35eb4dec7dc05896 SHA-1: 6fc3c06e01376eb4a85441c80980e5c02c795288 SHA-256: b10cd4c60d89b6fa9d33d01af72cc071830517d7480188f93c8fa247cecfbfd3
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to obtaining free virtual currency for the game Roblox. It embeds multiple URLs, including one pointing to 'netcdn.xyz', which likely serves as a landing page for a phishing attempt or to download a second-stage payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 3

  • 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/how-to-get-free-roblox-robux-2021-game-hack PDF link annotation
    • http://www.saburai.ac.id/elibrary//repository/free-coin-codes-for-roblox-bubble-gum-simulator.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/robux-free-onlin.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-r-free-robux-robux-robux-free.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-hack-menu-jailbreak-2021-abril.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-code-free-beyblade-burst.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-roblox-shirt-templates-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/tuto-free-animation-2021-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/skin-hack-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-studio-free-download-for-windows.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hacks-para-infinity-anime-roblox.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003dcd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3DCD 24516 bytes
SHA-256: 580492c0c08eb49edddfd1ee45d58a4d3e01ea0cfd4492ca6505e61b437931cd
font_01_sfnt_off000075e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E0 18756 bytes
SHA-256: 0d2e1cfb08f656119cb568de0016c2e98eda82fb053545525d35b4c6482394a5