PDF static analysis report

Static analysis result for SHA-256 a81c4a6522910dc0…

SUSPICIOUS

PDF

42.0 KB Created: 2021-04-27 16:15:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5946ab82ea6850b27171328f408e8993 SHA-1: c58c89c1a1d545c277f206b8da1e12779df539fa SHA-256: a81c4a6522910dc0031811ba9434925bb4f5b050cac76e6a15094204a02a28a6
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a website offering free in-game currency, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the presence of an embedded URI and the document's content suggest an attempt to redirect the user to a malicious site.

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-5-million-free-robux-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/free-robux-website-no-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-yourself-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-trades-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-and-tix-generator-no-download.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-generator-2021-gamingthix.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-coins-in-roblox-assassin.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hair-free-girl-pink.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/get-free-roblox-today.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hack-de-cuentas-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/best-way-to-hack-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_off000042d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42D3 26992 bytes
SHA-256: 949fc85b3cae4ab26f612ed5e29076c8069e86d2a213374a2381688219784834
font_01_sfnt_off00008123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8123 18804 bytes
SHA-256: fd26c98fd5e1b4a60a137a2438b6949f2dd27d6ba53f5b6f544ec752adef531f