PDF static analysis report

Static analysis result for SHA-256 72fd4e3dda4bb60c…

SUSPICIOUS

PDF

40.2 KB Created: 2021-04-27 23:05:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b979f6feebd7ad9dd7b9f10cd26af572 SHA-1: 25770073f566d5335392720796e2948c32bd0efd SHA-256: 72fd4e3dda4bb60c304c875d34c3a2dc8ec005d7d2997f4baaf043e74128f771
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual call-to-action, strongly suggesting a phishing or social engineering attempt. The primary URL, 'https://netcdn.xyz/app/431946152/roblox-free-robux-no-fake-game-hack', is likely a lure for downloading a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence.

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/roblox-free-robux-no-fake-game-hack PDF link annotation
    • http://www.saburai.ac.id/elibrary//repository/como-hackear-cuentas-de-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-virtual-piano-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-free-robux-urban420-network.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hacks-para-infinity-anime-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-really-easy.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-hacks-counterbloxrobloxofensibe.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-be-a-hacker-on-roblox-ipad.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-frappe-hacks.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-codes-2021-pastebin.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-free-robux-easy-2021-pc.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_off00003e1a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E1A 26848 bytes
SHA-256: 74803d1dfe42814e7fda09c230b835b341549bb95f07589f4b07967b20dbe664
font_01_sfnt_off00007ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE5 18488 bytes
SHA-256: 23d7cc08a1877d46736890c1dc7d6b4166c9b7814243c96f0cbde1f2f6a29763