PDF static analysis report

Static analysis result for SHA-256 527ae3daa89451de…

SUSPICIOUS

PDF

43.6 KB Created: 2021-04-29 16:47:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f5f8e49e5f8763e3b139c95b0595a5d9 SHA-1: 1307c47f9ce491ceec36d8895b2ec2f82ccc6180 SHA-256: 527ae3daa89451de22df07890db8e7b950436a459d88b61df0008272c9510b97
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to obtaining free Robux, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent. While no scripts were directly extracted, the document's structure and embedded links suggest it's designed to lead users to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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-robux-for-free-without-human-verication-game-hack PDF link annotation
    • https://www.malesse.com/ckfinder/userfiles/files/como-hacer-hacks-roblox.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/descargar-hack-de-jailbreak-roblox.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-is-asking-me-to-free-space-help.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-apk-mod-unlimited-robux-free-download.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/island-royale-roblox-free.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/free-roblox-card-code-generator.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/bux-blast-earn-free-robux.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/hacking-my-roomates-roblox-account.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/free-robux-obby-limited-time-only-2021.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/silent-assassin-cheats-roblox.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_off00004703.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4703 27456 bytes
SHA-256: 8d3fd0483f086bb48c7882c50e160c08b047f8bf17e4374ae799f17145e3d4de
font_01_sfnt_off000085c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C6 19388 bytes
SHA-256: cc5b78933f055af682dfbddda522205ef26b8b69a76e2c4ee4d83097616a8043

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