PDF static analysis report

Static analysis result for SHA-256 1599b785f6467c2d…

SUSPICIOUS

PDF

41.1 KB Created: 2021-04-27 23:08:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ad751aa1f5cbd54f064d6e30bbcc8391 SHA-1: c3b489da58376ac82ded616f1ee2cb4074b0fc20 SHA-256: 1599b785f6467c2d7453effb270889e939b5ab600a10965895741d7400948f5b
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs, one of which points to a suspicious domain and is associated with a lure for free in-game items. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. The presence of a 'download button' heuristic further supports the attack pattern of tricking users into downloading a payload.

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/free-egtv-in-roblox-game-hack PDF link annotation
    • http://www.saburai.ac.id/elibrary//repository/friv-roblox-free.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/fencing-roblox-hacks.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-5-bil-robux.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-magma-fiend-in-roblox-for-free.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-email-reset-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-generator-no-human-verification-2021-for-kids.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/free-boy-shirts-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/moon-tycoon-roblox-gives-free-robux.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-jailbreak-speed-hack-update-codes-2021-yasser-gamingyt.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
font_00_sfnt_off000042a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42A0 26448 bytes
SHA-256: 53a3c98636e03d30abf92a7626cc4d833b2dfa556da41d06b29683122de97f6d
font_01_sfnt_off00007e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6E 18456 bytes
SHA-256: 581e33995341387764a4cca62dbb69a1ca4b25936ec3cdbeb46d3a0023854082

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