Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb4a5e8bbaeaa4e…

MALICIOUS

PDF

13.0 KB
MD5: 02a4ff89bf1e17000093efe25e1d294a SHA-1: b4a62563fe62bbf859bbc241af21ed794da3ce9f SHA-256: 7eb4a5e8bbaeaa4e25a71faf4f4e2868f73efef2674b5fb84b2afcaeec296102
150 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The file was detected by ClamAV as 'Pdf.Dropper.Agent-7009520-0', indicating it is a dropper. An extracted artifact was also flagged by ClamAV as 'Win.Exploit.Jailbreak-1', suggesting it exploits a known vulnerability. The ML classifier also strongly indicated maliciousness. The PDF structure and embedded artifacts point towards a common pattern of exploiting PDF vulnerabilities to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9056

Heuristics 2

  • ClamAV: Pdf.Dropper.Agent-7009520-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7009520-0
  • 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
35e8f5092698051975b4f92173b6ffe9c8fe9d6b28db37f1b2917503210b44ed		 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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