PDF static analysis report

Static analysis result for SHA-256 5e933c4bb9f7b076…

SUSPICIOUS

PDF

37.7 KB Created: 2021-05-19 07:30:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: cf1384efa84b33adf9a899f073ce6c0d SHA-1: 1bf3efcb61ff3477f8d031f4963d229bc5ac2654 SHA-256: 5e933c4bb9f7b076d5ec19eec6150b3dd7b2da574911218cc6bff1d432ee079a
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a lure for 'Robux' and a visual download button, suggesting a scam or malware distribution. The presence of an external URI pointing to a suspicious domain and a heuristic indicating a password-protected archive lure strongly suggest the document is designed to trick users into downloading and potentially decrypting a malicious payload. The document body's content and embedded URL reinforce the theme of game-related scams.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/robux-robux-game-hack PDF link annotation
    • 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_off000032a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A5 29000 bytes
SHA-256: c15a0da10f1c81848ab4b76b246e1deb204225ca178d79ee0b4aa86d73fa7f83
font_01_sfnt_off00007347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7347 17852 bytes
SHA-256: fa3705be5ee6565d64fcba6f9827690fa2c8bb031b8e73c4196ce8f5ba2d7c1a

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