Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ddc278427ac6da8…

MALICIOUS

PDF

13.2 KB
MD5: 75a33ff007a32ce34b47fe366ba2c5b0 SHA-1: 7ed54ae1afe2f982347a113e487c26f4d0a1d626 SHA-256: 6ddc278427ac6da8eef08e83ba8e026e1fcdd6e068808ad8d5d8dc53f3d72142
152 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file was flagged by multiple heuristics, including ClamAV, as malicious, specifically identifying it as Win.Exploit.Jailbreak-1. The embedded URL http://jailbreakme.com/wad.bin is highly suspicious and likely serves as the download location for a secondary payload. The exploit targets PDF reader vulnerabilities to achieve initial execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9056

Heuristics 3

  • ClamAV: Win.Exploit.Jailbreak-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Exploit.Jailbreak-1
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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 http://jailbreakme.com/wad.bin
    • http://www.apple.com/DTDs/PropertyList-1.0.dtd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_cff_off00000458.bin
1c91e3822c783f073afcc9c4a3cd93a6fa9089c70ea7f86799e16ebea04a3f0d		 pdf-font-stream PDF embedded font (cff) at offset 0x458 40077 bytes
Detection
ClamAV: Win.Exploit.Jailbreak-1
Obfuscation or payload: unlikely

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