Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f442ba36eb6576…

MALICIOUS

PDF

42.1 KB
MD5: 7c6190ecdc7ca15b51cb389dae988f90 SHA-1: 38c779c0e1ee5227d64bbc94710eff7761fc170e SHA-256: 69f442ba36eb65762a3cb5e6a3ebc8afb1428b2e216387a6c1112fa354309f33
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains embedded content and triggers heuristics indicating an exploit payload. ClamAV detection as 'Pdf.Exploit.Agent-36830' strongly suggests exploitation for client execution. The embedded artifact and ML classifier output further support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • 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 file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
cf9686957f5d33692a54c0f350b9c76d1dd27dcf4cf697f9d8f912403f6148bb
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42403 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely