Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f4e0f7bd372b34…

MALICIOUS

PDF

13.0 KB
MD5: 3cc2f17989bccafeb6cf863cca3b772a SHA-1: db4b50c03ba7f5f48b70f27de370f174dd4c1929 SHA-256: a6f4e0f7bd372b34ab26a5ecd784ed0c689befad757ea0103904ed605259d369
120 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Win.Exploit.Jailbreak-1, indicating it exploits a known vulnerability. The PDF structure and embedded font stream are consistent with exploit delivery mechanisms. The primary attack pattern involves leveraging a PDF vulnerability to execute arbitrary code.

Heuristics 2

  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_cff_off00000458.bin
276486d126b2be223d0159e4e4ed94c70de80b14c0fa4e52a4f342f78a5dc77e
pdf-font-stream PDF embedded font (cff) at offset 0x458 40077 bytes
Detection
ClamAV: Win.Exploit.Jailbreak-1
Obfuscation or payload: unlikely