Malicious PDF — malware analysis report

Static analysis result for SHA-256 0951742ad1037c85…

MALICIOUS

PDF

13.2 KB
MD5: 6feb377905226d326669be356de62a00 SHA-1: d37f8cc0d972e3abd72aab9ef5b5dd0e4e92c543 SHA-256: 0951742ad1037c85201b5aa3db27e5756127e634ac815d567ca840ab58a6df29
152 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample was detected by ClamAV as Win.Exploit.Jailbreak-1, indicating it exploits a known vulnerability. The embedded URL http://jailbreakme.com/wad.bin likely points to a secondary payload. The ML classifier also flagged the PDF with high confidence.

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
16a7cd0e3a96d6181c98dd04c079923408df8dbbbdf9c89ad9c101136cf9b1c0		 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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