PDF static analysis report

Static analysis result for SHA-256 4a756216ddef57d0…

SUSPICIOUS

PDF

43.9 KB Created: 2021-04-28 00:29:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2f456cda28e77d456b26de187ae2d8f9 SHA-1: cd2ea62dced2265c5bd013c60e5206fdc9728b54 SHA-256: 4a756216ddef57d0bddacdc018eb4475526be25978187ad7a727bcd297b3839f
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that strongly suggest a lure for free Robux, a common tactic in phishing and malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the presence of external URIs and the document's content indicate an attempt to redirect the user to a site that likely hosts a malicious payload or further phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

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/get-robux-for-free-2021-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/any-roblox-game-pass-free-script.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-robux-with-robux-generator.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-may-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-roblox-2021-june.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-mad-city-hack-script.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-can-you-hack-roblox-tattletail.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-no-app-download-or-survey.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/4life-fun-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-no-verification-no-credit-card-no-surveys.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-character-codes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000040b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40B2 27516 bytes
SHA-256: 8171e9cabb0d3f2cebfd536ef1307ac4d488c4aad1e560a6fe1718d6a903dec7
font_01_sfnt_off00007ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF1 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off000088b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B3 18520 bytes
SHA-256: e088d92b388561e3a46dc194d915539325ab46261f90c1147848fe102ee4ee2d

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