PDF static analysis report

Static analysis result for SHA-256 4fba8a141a271c76…

SUSPICIOUS

PDF

41.6 KB Created: 2021-04-28 04:34:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 890c80ac228b05cce8ab647b13fd71e4 SHA-1: 2336a811ea7c4e59a1cfe78ee865d68b3376f2f9 SHA-256: 4fba8a141a271c764741712522f3d48e1ccd9d93e7c333c13d6ab4afd5a6f687
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to pages offering hacks or cheats for the game Roblox, often mentioning 'free Robux' and 'no verification'. The presence of a high-confidence ML classifier firing and external URI heuristics strongly suggests malicious intent. While no scripts were explicitly extracted, the document's structure and embedded links point towards a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/hack-roblox-robux-sin-verificacion-humana-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/roblox-hack-stage-samim-sinim-youtube-aid.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/jailbreak-hacks-for-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/boing-arroe-free-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-cheat-noclip-in-roblox-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/youtube-free-items-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-sans-verification-humaine.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/jailbreak-roblox-cheat-engine.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-promocode-give-you-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/download-synapse-roblox-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-roblox-avatar-clothes.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00004222.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4222 26708 bytes
SHA-256: 5af1eca979f30734e0a66563f3f1e08f211c25a60e1b503dbf0a42880d17c5a4
font_01_sfnt_off00007f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 18836 bytes
SHA-256: 015537d8d1a4f8f871bf6b3d1bf9804a22e84f1642d9b5747fd695f5bb2d21db

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