PDF static analysis report

Static analysis result for SHA-256 f8e3dbb5b0247f5b…

SUSPICIOUS

PDF

40.9 KB Created: 2021-04-27 07:41:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: da3d8983dcf1d831489de08453296083 SHA-1: 9deacb81a31d4fa041537155c682e1a21a1e9bfa SHA-256: f8e3dbb5b0247f5b746b91bab3e2b275bb94711573bc712a17d4dc5c62133ae4
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent external URI pointing to a URL that claims to offer free Robux, a common lure for scams and malware. The ML classifier strongly flagged this PDF as malicious, and the presence of a visual download button further supports a malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it is designed to redirect users to potentially harmful content.

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/lazyblocks-com-free-robux-2021-game-hack PDF link annotation
    • http://www.saburai.ac.id/elibrary//repository/cheat-files-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-face-roblox-makeup.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-cheat-engine-download-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-roblox-toy-redemption-codes.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/download-games-to-get-free-robux.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-a-lot-of-robux-hack.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/how-do-you-get-the-hack-no-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-no-hacking-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-free-faces-on-roblox-2021.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000040f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40F8 25552 bytes
SHA-256: a8dfa45914e8646949a176293d14b8a1529f641ef24e1f4571e44181520aff75
font_01_sfnt_off00007ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC5 19412 bytes
SHA-256: 6c4e908373f8d5910b3b1175292aed3245e4aeb5921487ffe99696cb9bc045e8

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